Solar Radio, Magnetometry and Spectroscopy

New Topic

730 topics

Topics

Replies

Views

Last post

CaK 600mm FL full-disk SHG image -- with stacking!

Last post by thesmiths « Tue Jul 05, 2022 6:08 pm
Replies: 7
by thesmiths » Tue Jun 21, 2022 8:23 pm

Rating: 4.9%

7 Replies

166 Views

Last post by thesmiths
Tue Jul 05, 2022 6:08 pm
Stacking an SHG H-alpha image -- first attempt at stacking a large number of frames

Last post by Montana « Tue Jul 05, 2022 1:50 pm
Replies: 5
by thesmiths » Mon Jul 04, 2022 1:43 pm

Rating: 0.49%

5 Replies

80 Views

Last post by Montana
Tue Jul 05, 2022 1:50 pm
Twin G1 Geomagnetic Storms

Last post by Montana « Tue Jul 05, 2022 1:41 pm
Replies: 1
by Carbon60 » Tue Jul 05, 2022 6:18 am

Rating: 0.49%

1 Replies

20 Views

Last post by Montana
Tue Jul 05, 2022 1:41 pm
G1 Geomagnetic Storm 1st-2nd July 2022

Last post by Carbon60 « Tue Jul 05, 2022 4:47 am
Replies: 6
by Carbon60 » Sat Jul 02, 2022 4:17 pm

Rating: 3.92%

6 Replies

89 Views

Last post by Carbon60
Tue Jul 05, 2022 4:47 am
my first hbeta with open slit

Last post by Montana « Mon Jul 04, 2022 1:02 pm
Replies: 2
by highfnum » Sun Jul 03, 2022 11:15 pm

Rating: 0.49%

2 Replies

50 Views

Last post by Montana
Mon Jul 04, 2022 1:02 pm
H-alpha and H-beta SHG mosaics

Last post by Montana « Mon Jul 04, 2022 1:01 pm
Replies: 1
by thesmiths » Mon Jul 04, 2022 12:09 am

Rating: 0.49%

1 Replies

33 Views

Last post by Montana
Mon Jul 04, 2022 1:01 pm
23June2022: AR13038 - Spectral sweep through H alpha.

Last post by highfnum « Sun Jul 03, 2022 11:12 pm
Replies: 6
by p_zetner » Sun Jul 03, 2022 1:20 am

Rating: 1.47%

6 Replies

82 Views

Last post by highfnum
Sun Jul 03, 2022 11:12 pm
some open slit photo - videos

Last post by highfnum « Sun Jul 03, 2022 2:45 pm
Replies: 8
by highfnum » Tue Jun 21, 2022 2:29 pm

Rating: 2.45%

8 Replies

163 Views

Last post by highfnum
Sun Jul 03, 2022 2:45 pm
23June2022: H alpha prominence spectral analysis

Last post by p_zetner « Sun Jul 03, 2022 12:40 am
Replies: 4
by p_zetner » Wed Jun 29, 2022 6:40 pm

Rating: 1.96%

4 Replies

88 Views

Last post by p_zetner
Sun Jul 03, 2022 12:40 am
SHG filament dance

Last post by marktownley « Sat Jul 02, 2022 9:01 am
Replies: 4
by highfnum » Thu Jun 30, 2022 3:42 pm

Rating: 0.98%

4 Replies

99 Views

Last post by marktownley
Sat Jul 02, 2022 9:01 am
23May2022: UV Spectroheliograms

Last post by Montana « Fri Jul 01, 2022 7:57 am
Replies: 3
by p_zetner » Thu Jun 30, 2022 12:05 am

Rating: 2.94%

3 Replies

87 Views

Last post by Montana
Fri Jul 01, 2022 7:57 am
23June2022: The Fraunhofer Four

Last post by p_zetner « Wed Jun 29, 2022 11:52 pm
Replies: 6
by p_zetner » Mon Jun 27, 2022 8:04 pm

Rating: 3.43%

6 Replies

131 Views

Last post by p_zetner
Wed Jun 29, 2022 11:52 pm
Periodic Table of emission spectra

Last post by p_zetner « Tue Jun 28, 2022 3:26 pm
Replies: 6
by Hiernst » Mon Jun 27, 2022 6:20 pm

Rating: 1.96%

6 Replies

106 Views

Last post by p_zetner
Tue Jun 28, 2022 3:26 pm
the big prominence and eruptive emission within...(june 23rd)

Last post by highfnum « Fri Jun 24, 2022 8:13 pm
Replies: 9
by ChrisHalpha2017 » Thu Jun 23, 2022 8:56 am

Rating: 7.84%

9 Replies

187 Views

Last post by highfnum
Fri Jun 24, 2022 8:13 pm
H-beta, H-alpha, CaH high-resolution SHG images, June 22

Last post by thesmiths « Thu Jun 23, 2022 7:55 pm
Replies: 6
by thesmiths » Wed Jun 22, 2022 9:03 pm

Rating: 2.45%

6 Replies

115 Views

Last post by thesmiths
Thu Jun 23, 2022 7:55 pm
eruption this morning June 21st 2022

Last post by marktownley « Thu Jun 23, 2022 7:51 pm
Replies: 1
by ChrisHalpha2017 » Tue Jun 21, 2022 9:01 pm

Rating: 1.96%

1 Replies

53 Views

Last post by marktownley
Thu Jun 23, 2022 7:51 pm
proms of June 17th 18th and ...19th...

Last post by marktownley « Tue Jun 21, 2022 6:32 pm
Replies: 3
by ChrisHalpha2017 » Mon Jun 20, 2022 7:58 pm

Rating: 1.96%

3 Replies

77 Views

Last post by marktownley
Tue Jun 21, 2022 6:32 pm
H-alpha and CaK full-disk SHG images -- plus CaK proms

Last post by ChrisHalpha2017 « Mon Jun 20, 2022 8:00 pm
Replies: 9
by thesmiths » Wed Jun 15, 2022 7:54 pm

Rating: 2.45%

9 Replies

234 Views

Last post by ChrisHalpha2017
Mon Jun 20, 2022 8:00 pm
H-beta and H-alpha, full-disk SHG at 700mm FL (and a big ejection)

Last post by Montana « Sun Jun 19, 2022 2:20 pm
Replies: 6
by thesmiths » Fri Jun 17, 2022 7:37 pm

Rating: 3.43%

6 Replies

154 Views

Last post by Montana
Sun Jun 19, 2022 2:20 pm
proms of today June 16th 2022...evolution and comparison

Last post by ChrisHalpha2017 « Fri Jun 17, 2022 9:35 am
Replies: 3
by ChrisHalpha2017 » Thu Jun 16, 2022 4:34 pm

Rating: 2.45%

3 Replies

76 Views

Last post by ChrisHalpha2017
Fri Jun 17, 2022 9:35 am
beautiffull prom this morning June 16th

Last post by ChrisHalpha2017 « Fri Jun 17, 2022 5:30 am
Replies: 8
by ChrisHalpha2017 » Thu Jun 16, 2022 9:17 am

Rating: 6.86%

8 Replies

119 Views

Last post by ChrisHalpha2017
Fri Jun 17, 2022 5:30 am
22May2022 Spectroheliograms - Part 2 - Fraunhofer Four

Last post by p_zetner « Fri Jun 17, 2022 2:51 am
Replies: 3
by p_zetner » Thu Jun 16, 2022 2:26 am

Rating: 1.96%

3 Replies

113 Views

Last post by p_zetner
Fri Jun 17, 2022 2:51 am
Request for SHG owners

Last post by ChrisHalpha2017 « Thu Jun 16, 2022 4:49 pm
Replies: 16
by ChrisHalpha2017 » Fri Jun 10, 2022 10:48 am

Rating: 5.39%

16 Replies

285 Views

Last post by ChrisHalpha2017
Thu Jun 16, 2022 4:49 pm
Minor G1 Geomagnetic Storm 15th June 2022

Last post by Montana « Thu Jun 16, 2022 10:49 am
Replies: 1
by Carbon60 » Wed Jun 15, 2022 8:45 pm

Rating: 1.47%

1 Replies

46 Views

Last post by Montana
Thu Jun 16, 2022 10:49 am
Daytime Arietid results 2022

Last post by rsfoto « Wed Jun 15, 2022 10:40 pm
Replies: 11
by Wyvern » Sun Jun 12, 2022 8:22 pm

Rating: 2.94%

11 Replies

169 Views

Last post by rsfoto
Wed Jun 15, 2022 10:40 pm
Improved full-disk SHG H-alpha imaging at 700mm FL

Last post by thesmiths « Wed Jun 15, 2022 7:14 pm
Replies: 7
by thesmiths » Wed Jun 15, 2022 12:22 am

Rating: 1.96%

7 Replies

146 Views

Last post by thesmiths
Wed Jun 15, 2022 7:14 pm
Thermal testing of 9mm-wide fused quartz SHG slit

Last post by thesmiths « Tue Jun 14, 2022 4:59 pm
Replies: 5
by thesmiths » Thu Jun 09, 2022 2:09 pm

Rating: 0.98%

5 Replies

187 Views

Last post by thesmiths
Tue Jun 14, 2022 4:59 pm
proms of sunday June 12th

Last post by ChrisHalpha2017 « Mon Jun 13, 2022 8:18 am
Replies: 6
by ChrisHalpha2017 » Sun Jun 12, 2022 5:25 pm

Rating: 4.9%

6 Replies

105 Views

Last post by ChrisHalpha2017
Mon Jun 13, 2022 8:18 am
22May2022 Spectroheliograms - Part 1 - Halpha

Last post by Montana « Mon Jun 13, 2022 7:26 am
Replies: 5
by p_zetner » Tue May 31, 2022 10:37 pm

Rating: 2.94%

5 Replies

185 Views

Last post by Montana
Mon Jun 13, 2022 7:26 am
prom of today June 10th 2022

Last post by Montana « Mon Jun 13, 2022 7:25 am
Replies: 6
by ChrisHalpha2017 » Fri Jun 10, 2022 12:55 pm

Rating: 5.39%

6 Replies

137 Views

Last post by Montana
Mon Jun 13, 2022 7:25 am
First full-disk SHG image at 700mm FL with new chrome-on-quartz slit

Last post by Montana « Mon Jun 13, 2022 7:24 am
Replies: 2
by thesmiths » Sat Jun 11, 2022 1:04 am

Rating: 1.47%

2 Replies

114 Views

Last post by Montana
Mon Jun 13, 2022 7:24 am
from later jun 9 SHG and open slit

Last post by Montana « Mon Jun 13, 2022 7:20 am
Replies: 4
by highfnum » Fri Jun 10, 2022 7:58 am

Rating: 2.94%

4 Replies

99 Views

Last post by Montana
Mon Jun 13, 2022 7:20 am
prom of the day June 9th 2022....

Last post by Montana « Mon Jun 13, 2022 7:18 am
Replies: 5
by ChrisHalpha2017 » Thu Jun 09, 2022 8:49 pm

Rating: 5.39%

5 Replies

111 Views

Last post by Montana
Mon Jun 13, 2022 7:18 am
Custom-made fused quartz slits for SHG -- 9 micron x 12 mm

Last post by p_zetner « Sat Jun 11, 2022 4:37 pm
Replies: 6
by thesmiths » Thu Jun 09, 2022 12:04 am

Rating: 2.94%

6 Replies

195 Views

Last post by p_zetner
Sat Jun 11, 2022 4:37 pm
Detection of Zeeman effect on AR 3014

Last post by fulvio.mete « Fri Jun 10, 2022 7:36 pm
Replies: 9
by fulvio.mete » Fri May 20, 2022 8:13 pm

Rating: 2.45%

9 Replies

239 Views

Last post by fulvio.mete
Fri Jun 10, 2022 7:36 pm
proms of June 7th and 8th

Last post by ChrisHalpha2017 « Thu Jun 09, 2022 8:45 pm
Replies: 12
by ChrisHalpha2017 » Wed Jun 08, 2022 1:57 pm

Rating: 7.35%

12 Replies

166 Views

Last post by ChrisHalpha2017
Thu Jun 09, 2022 8:45 pm
73P/Schwassmann-Wachmann meteor shower

Last post by rsfoto « Thu Jun 09, 2022 2:06 pm
Replies: 14
by rsfoto » Mon May 30, 2022 2:28 pm

Rating: 11.76%

14 Replies

272 Views

Last post by rsfoto
Thu Jun 09, 2022 2:06 pm
Ha spectroheliogram of today

Last post by fulvio.mete « Thu Jun 09, 2022 10:13 am
Replies: 3
by fulvio.mete » Wed Jun 08, 2022 5:06 pm

Rating: 2.94%

3 Replies

96 Views

Last post by fulvio.mete
Thu Jun 09, 2022 10:13 am
UK Magnetometer back in service- June 5th 2022

Last post by fulvio.mete « Tue Jun 07, 2022 7:31 pm
Replies: 4
by Carbon60 » Mon Jun 06, 2022 9:03 am

Rating: 1.47%

4 Replies

99 Views

Last post by fulvio.mete
Tue Jun 07, 2022 7:31 pm
June 6th 2022 observation in the morning

Last post by fulvio.mete « Mon Jun 06, 2022 7:39 pm
Replies: 8
by ChrisHalpha2017 » Mon Jun 06, 2022 9:24 am

Rating: 8.82%

8 Replies

165 Views

Last post by fulvio.mete
Mon Jun 06, 2022 7:39 pm
prom of the day JUNE 2nd, 2022 with spectro coronograph

Last post by Montana « Fri Jun 03, 2022 6:33 pm
Replies: 2
by ChrisHalpha2017 » Thu Jun 02, 2022 9:29 pm

Rating: 2.45%

2 Replies

131 Views

Last post by Montana
Fri Jun 03, 2022 6:33 pm
my first attempt at open slit method

Last post by fulvio.mete « Wed Jun 01, 2022 7:02 pm
Replies: 4
by highfnum » Sun May 29, 2022 3:37 pm

Rating: 1.47%

4 Replies

167 Views

Last post by fulvio.mete
Wed Jun 01, 2022 7:02 pm
prom of last sunday 29th May 2022 with spectro coronograph

Last post by Montana « Wed Jun 01, 2022 6:54 am
Replies: 2
by ChrisHalpha2017 » Tue May 31, 2022 9:41 am

Rating: 1.47%

2 Replies

76 Views

Last post by Montana
Wed Jun 01, 2022 6:54 am
prom and eruption from yesterday friday may 27th

Last post by Montana « Mon May 30, 2022 4:47 pm
Replies: 2
by ChrisHalpha2017 » Sat May 28, 2022 11:07 am

Rating: 4.41%

2 Replies

125 Views

Last post by Montana
Mon May 30, 2022 4:47 pm
SHG partial scans Ha and CaK

Last post by Montana « Fri May 27, 2022 9:12 am
Replies: 4
by highfnum » Tue May 24, 2022 9:58 am

Rating: 1.47%

4 Replies

144 Views

Last post by Montana
Fri May 27, 2022 9:12 am
session of May 21st 2022

Last post by Montana « Fri May 27, 2022 7:11 am
Replies: 5
by ChrisHalpha2017 » Mon May 23, 2022 10:41 am

Rating: 3.43%

5 Replies

138 Views

Last post by Montana
Fri May 27, 2022 7:11 am
huge prominence yesterday May 18th 2022

Last post by p_zetner « Fri May 20, 2022 8:57 pm
Replies: 8
by ChrisHalpha2017 » Thu May 19, 2022 7:53 am

Rating: 6.86%

8 Replies

183 Views

Last post by p_zetner
Fri May 20, 2022 8:57 pm
proms May 15th and 16th with spectro in Littrow mode

Last post by ChrisHalpha2017 « Thu May 19, 2022 8:00 am
Replies: 5
by ChrisHalpha2017 » Mon May 16, 2022 10:44 pm

Rating: 3.43%

5 Replies

140 Views

Last post by ChrisHalpha2017
Thu May 19, 2022 8:00 am
proms of the day May 17th and forgotten from yesterday

Last post by fulvio.mete « Wed May 18, 2022 3:24 pm
Replies: 5
by ChrisHalpha2017 » Tue May 17, 2022 8:15 pm

Rating: 1.96%

5 Replies

117 Views

Last post by fulvio.mete
Wed May 18, 2022 3:24 pm
Halpha spectroheliogram of today

Last post by fulvio.mete « Tue May 17, 2022 6:56 pm
Replies: 3
by fulvio.mete » Mon May 16, 2022 7:38 pm

Rating: 0.98%

3 Replies

110 Views

Last post by fulvio.mete
Tue May 17, 2022 6:56 pm
H alpha spectroheliograms comparison

Last post by marktownley « Mon May 16, 2022 7:23 pm
Replies: 4
by fulvio.mete » Wed May 11, 2022 3:48 pm

Rating: 1.47%

4 Replies

203 Views

Last post by marktownley
Mon May 16, 2022 7:23 pm
Surplus Shed Optical Slit

Last post by highfnum « Thu May 12, 2022 3:39 pm
Replies: 4
by Bob Yoesle » Wed Mar 30, 2022 5:26 pm

Rating: 1.47%

4 Replies

243 Views

Last post by highfnum
Thu May 12, 2022 3:39 pm
Eta Aquarids 2022

Last post by Wyvern « Wed May 11, 2022 8:37 pm
Replies: 1
by rsfoto » Wed May 11, 2022 4:03 pm

Rating: 1.96%

1 Replies

66 Views

Last post by Wyvern
Wed May 11, 2022 8:37 pm
SHG cak and spectrum prom line

Last post by fulvio.mete « Wed May 11, 2022 12:07 pm
Replies: 4
by highfnum » Tue May 10, 2022 10:54 am

Rating: 1.47%

4 Replies

129 Views

Last post by fulvio.mete
Wed May 11, 2022 12:07 pm
Krypton line - spectroscopy

Last post by p_zetner « Thu May 05, 2022 3:39 pm
Replies: 14
by Montana » Tue May 03, 2022 11:30 am

Rating: 6.86%

14 Replies

430 Views

Last post by p_zetner
Thu May 05, 2022 3:39 pm
H alpha spectroheliograms of today

Last post by fulvio.mete « Wed May 04, 2022 2:28 pm
Replies: 6
by fulvio.mete » Wed Apr 27, 2022 5:20 pm

Rating: 1.47%

6 Replies

247 Views

Last post by fulvio.mete
Wed May 04, 2022 2:28 pm
Start your engines ... Lyrids 2022 are coming

Last post by marktownley « Sun May 01, 2022 11:14 am
Replies: 6
by rsfoto » Thu Apr 21, 2022 4:14 pm

Rating: 5.88%

6 Replies

276 Views

Last post by marktownley
Sun May 01, 2022 11:14 am
specgrams Ha vs Hbeta

Last post by highfnum « Wed Apr 27, 2022 11:19 pm
Replies: 7
by highfnum » Fri Apr 22, 2022 10:31 pm

Rating: 2.45%

7 Replies

231 Views

Last post by highfnum
Wed Apr 27, 2022 11:19 pm
Spectroheliography in UV light

Last post by fulvio.mete « Tue Apr 26, 2022 5:58 pm
Replies: 7
by fulvio.mete » Fri Apr 22, 2022 5:23 pm

Rating: 1.96%

7 Replies

245 Views

Last post by fulvio.mete
Tue Apr 26, 2022 5:58 pm
Spectroheliography in CN light

Last post by fulvio.mete « Tue Apr 26, 2022 9:10 am
Replies: 12
by fulvio.mete » Sun Apr 24, 2022 2:40 pm

Rating: 4.41%

12 Replies

287 Views

Last post by fulvio.mete
Tue Apr 26, 2022 9:10 am
CaII H spectroheliogram

Last post by p_zetner « Mon Apr 25, 2022 7:50 pm
Replies: 7
by fulvio.mete » Mon Apr 25, 2022 7:47 am

Rating: 1.96%

7 Replies

186 Views

Last post by p_zetner
Mon Apr 25, 2022 7:50 pm
Comments on Solar Radio Astronomy

Last post by p_zetner « Wed Apr 20, 2022 1:08 am
Replies: 6
by p_zetner » Sun Apr 17, 2022 9:25 pm

Rating: 4.9%

6 Replies

298 Views

Last post by p_zetner
Wed Apr 20, 2022 1:08 am
How to start in Solar Radio? Radio astronomy in general?

Last post by rsfoto « Sun Apr 17, 2022 6:01 pm
Replies: 17
by MalVeauX » Mon Apr 11, 2022 2:19 pm

Rating: 8.82%

17 Replies

521 Views

Last post by rsfoto
Sun Apr 17, 2022 6:01 pm
shg Ha caK

Last post by p_zetner « Sun Apr 17, 2022 3:03 am
Replies: 4
by highfnum » Fri Apr 15, 2022 6:47 pm

Rating: 2.94%

4 Replies

165 Views

Last post by p_zetner
Sun Apr 17, 2022 3:03 am
G3 Geomagnetic Storm April 10th 2022

Last post by Carbon60 « Tue Apr 12, 2022 5:59 am
Replies: 4
by Carbon60 » Sun Apr 10, 2022 3:07 pm

Rating: 1.96%

4 Replies

150 Views

Last post by Carbon60
Tue Apr 12, 2022 5:59 am
G1 Geomagnetic Storm 31st March 2022

Last post by Carbon60 « Tue Apr 05, 2022 3:51 pm
Replies: 5
by Carbon60 » Thu Mar 31, 2022 7:04 am

Rating: 1.47%

5 Replies

315 Views

Last post by Carbon60
Tue Apr 05, 2022 3:51 pm
Spectroheliograms recorded last summer.

Last post by marktownley « Sun Apr 03, 2022 10:15 am
Replies: 10
by p_zetner » Fri Mar 18, 2022 3:22 pm

Rating: 9.31%

10 Replies

553 Views

Last post by marktownley
Sun Apr 03, 2022 10:15 am
Rainer's quest to build a magnetometer

Last post by rsfoto « Sat Apr 02, 2022 3:26 pm
Replies: 46
by Carbon60 » Tue Mar 15, 2022 4:14 pm
1

2
Rating: 7.84%
46 Replies

1586 Views

Last post by rsfoto
Sat Apr 02, 2022 3:26 pm
G2 Geomagnetic Storm (CME Impact) 13th-14th March 2022

Last post by rsfoto « Fri Mar 18, 2022 8:31 pm
Replies: 9
by Carbon60 » Mon Mar 14, 2022 7:49 am

Rating: 8.33%

9 Replies

464 Views

Last post by rsfoto
Fri Mar 18, 2022 8:31 pm
Dipping my Toe into Spectroscopy

Last post by Merlin66 « Mon Mar 14, 2022 12:21 am
Replies: 24
by Carbon60 » Thu Mar 03, 2022 9:05 am

Rating: 14.71%

24 Replies

1095 Views

Last post by Merlin66
Mon Mar 14, 2022 12:21 am
G1 Geomagnetic Storms 5th - 6th March 2022

Last post by Carbon60 « Mon Mar 07, 2022 4:41 pm
Replies: 3
by Carbon60 » Sun Mar 06, 2022 3:55 pm

Rating: 2.45%

3 Replies

248 Views

Last post by Carbon60
Mon Mar 07, 2022 4:41 pm
G1 Geomagnetic Storm 20th Feb 2022

Last post by marktownley « Thu Feb 24, 2022 7:59 am
Replies: 7
by Carbon60 » Sun Feb 20, 2022 7:35 pm

Rating: 3.92%

7 Replies

428 Views

Last post by marktownley
Thu Feb 24, 2022 7:59 am
CME and Geoeffective Wake 9th - 11th Feb 2022

Last post by Carbon60 « Sun Feb 13, 2022 6:27 am
Replies: 4
by Carbon60 » Fri Feb 11, 2022 7:56 am

Rating: 2.45%

4 Replies

477 Views

Last post by Carbon60
Sun Feb 13, 2022 6:27 am
CME and Geoeffective Wake 5th Feb 2022

Last post by Carbon60 « Fri Feb 11, 2022 7:43 am
Replies: 10
by Carbon60 » Sat Feb 05, 2022 10:13 am

Rating: 6.37%

10 Replies

495 Views

Last post by Carbon60
Fri Feb 11, 2022 7:43 am
Weak CME Impact 1st-2nd Feb 2022-Updated

Last post by Montana « Fri Feb 04, 2022 8:18 am
Replies: 13
by Carbon60 » Wed Feb 02, 2022 11:32 am

Rating: 7.84%

13 Replies

501 Views

Last post by Montana
Fri Feb 04, 2022 8:18 am
Found the next challenge! CN wavelength

Last post by marktownley « Tue Feb 01, 2022 7:56 pm
Replies: 15
by Merlin66 » Sat Jan 15, 2022 4:39 am

Rating: 7.35%

15 Replies

791 Views

Last post by marktownley
Tue Feb 01, 2022 7:56 pm
Doppler Image Jan 30

Last post by p_zetner « Sun Jan 30, 2022 10:06 pm
Replies: 8
by PDB » Sun Jan 30, 2022 2:26 pm

Rating: 2.94%

8 Replies

429 Views

Last post by p_zetner
Sun Jan 30, 2022 10:06 pm
Stellafane SHS - early imaging result

Last post by mconsidine « Sun Jan 30, 2022 9:14 pm
Replies: 5
by mconsidine » Thu Aug 19, 2021 5:43 pm

Rating: 2.94%

5 Replies

740 Views

Last post by mconsidine
Sun Jan 30, 2022 9:14 pm
20Jun2017 Spectroheliograms: Cleaning House!

Last post by christian viladrich « Sat Jan 29, 2022 9:05 pm
Replies: 5
by p_zetner » Sat Dec 30, 2017 5:20 pm

5 Replies

3224 Views

Last post by christian viladrich
Sat Jan 29, 2022 9:05 pm
Quadrantids - 2022

Last post by Wyvern « Mon Jan 24, 2022 7:51 pm
Replies: 3
by Wyvern » Sun Jan 23, 2022 1:23 pm

Rating: 3.43%

3 Replies

300 Views

Last post by Wyvern
Mon Jan 24, 2022 7:51 pm
A string of storms 18th Jan 2022

Last post by Carbon60 « Thu Jan 20, 2022 7:33 am
Replies: 4
by Carbon60 » Tue Jan 18, 2022 9:45 am

Rating: 2.94%

4 Replies

313 Views

Last post by Carbon60
Thu Jan 20, 2022 7:33 am
Unexpected G2 Geomagnetic Storm

Last post by Carbon60 « Wed Jan 19, 2022 12:14 pm
Replies: 10
by Carbon60 » Sat Jan 15, 2022 12:31 pm

Rating: 5.88%

10 Replies

471 Views

Last post by Carbon60
Wed Jan 19, 2022 12:14 pm
CaH and continuum SHG images (resolution upgrade)

Last post by Merlin66 « Wed Jan 12, 2022 8:00 am
Replies: 5
by thesmiths » Tue Jan 11, 2022 1:25 am

Rating: 1.96%

5 Replies

467 Views

Last post by Merlin66
Wed Jan 12, 2022 8:00 am
G1 Geomagnetic Storm 8th January 2022

Last post by Carbon60 « Tue Jan 11, 2022 12:28 pm
Replies: 4
by Carbon60 » Sun Jan 09, 2022 8:37 am

Rating: 1.47%

4 Replies

347 Views

Last post by Carbon60
Tue Jan 11, 2022 12:28 pm
and there go the Ursids!!!

Last post by Wyvern « Thu Jan 06, 2022 3:22 pm
Replies: 25
by Wyvern » Sun Dec 26, 2021 6:22 pm
1

2
Rating: 13.24%
25 Replies

987 Views

Last post by Wyvern
Thu Jan 06, 2022 3:22 pm
Geomagnetic summary for 2021 vs 2020

Last post by Carbon60 « Tue Jan 04, 2022 7:47 pm
Replies: 3
by Carbon60 » Sun Jan 02, 2022 4:22 pm

Rating: 1.96%

3 Replies

289 Views

Last post by Carbon60
Tue Jan 04, 2022 7:47 pm
Mg (b2) absorption line

Last post by Merlin66 « Sat Jan 01, 2022 9:06 pm
Replies: 3
by Merlin66 » Sat Jan 01, 2022 3:45 am

Rating: 1.47%

3 Replies

293 Views

Last post by Merlin66
Sat Jan 01, 2022 9:06 pm
G1 Geomagnetic Storm 19th Dec 2021

Last post by MapleRidge « Thu Dec 23, 2021 11:52 pm
Replies: 4
by Carbon60 » Mon Dec 20, 2021 5:48 pm

Rating: 2.45%

4 Replies

408 Views

Last post by MapleRidge
Thu Dec 23, 2021 11:52 pm
Geminids 2021 December 14th

Last post by rsfoto « Sun Dec 19, 2021 4:35 pm
Replies: 15
by rsfoto » Sat Dec 11, 2021 7:07 pm

Rating: 14.22%

15 Replies

720 Views

Last post by rsfoto
Sun Dec 19, 2021 4:35 pm
Geomagnetic Unrest 10th-11th December 2021

Last post by marktownley « Mon Dec 13, 2021 10:10 am
Replies: 2
by Carbon60 » Sun Dec 12, 2021 3:16 pm

Rating: 1.96%

2 Replies

264 Views

Last post by marktownley
Mon Dec 13, 2021 10:10 am
A new SHG using a cheap 300mm f5.6 lens

Last post by Montana « Mon Dec 06, 2021 2:41 pm
Replies: 1
by thesmiths » Sun Dec 05, 2021 7:35 pm

Rating: 1.47%

1 Replies

397 Views

Last post by Montana
Mon Dec 06, 2021 2:41 pm
Minor CME and Solar Wind Driven Geomagnetic Unrest 29th November 2021

Last post by marktownley « Sun Dec 05, 2021 9:40 am
Replies: 3
by Carbon60 » Mon Nov 29, 2021 8:48 am

Rating: 2.45%

3 Replies

283 Views

Last post by marktownley
Sun Dec 05, 2021 9:40 am
H-alpha and CaH SHG comparison

Last post by marktownley « Sun Dec 05, 2021 9:35 am
Replies: 3
by thesmiths » Sun Nov 28, 2021 8:14 pm

Rating: 1.96%

3 Replies

327 Views

Last post by marktownley
Sun Dec 05, 2021 9:35 am
Leonids 2021

Last post by Carbon60 « Tue Nov 30, 2021 3:36 pm
Replies: 9
by rsfoto » Thu Nov 18, 2021 2:47 pm

Rating: 7.35%

9 Replies

512 Views

Last post by Carbon60
Tue Nov 30, 2021 3:36 pm
Filament structure and protuberances in CaH with SHG

Last post by marktownley « Sat Nov 27, 2021 7:58 am
Replies: 7
by thesmiths » Fri Nov 26, 2021 12:22 am

Rating: 6.37%

7 Replies

468 Views

Last post by marktownley
Sat Nov 27, 2021 7:58 am
Big filaments in H-alpha with SHG at 700mm FL

Last post by Merlin66 « Thu Nov 25, 2021 10:28 pm
Replies: 8
by thesmiths » Tue Nov 23, 2021 7:51 pm

Rating: 4.41%

8 Replies

507 Views

Last post by Merlin66
Thu Nov 25, 2021 10:28 pm
Another comparison of CaK SHG and PST -- looking for filaments

Last post by Montana « Tue Nov 23, 2021 8:21 am
Replies: 3
by thesmiths » Mon Nov 22, 2021 5:07 pm

Rating: 1.47%

3 Replies

327 Views

Last post by Montana
Tue Nov 23, 2021 8:21 am
Echelle spectrograph images -- in colour

Last post by Montana « Mon Nov 22, 2021 8:01 am
Replies: 2
by thesmiths » Mon Nov 22, 2021 12:51 am

Rating: 2.45%

2 Replies

297 Views

Last post by Montana
Mon Nov 22, 2021 8:01 am
Geomagnetic Unrest 16th November 2021

Last post by Carbon60 « Sat Nov 20, 2021 2:57 pm
Replies: 4
by Carbon60 » Tue Nov 16, 2021 7:42 am

Rating: 3.92%

4 Replies

341 Views

Last post by Carbon60
Sat Nov 20, 2021 2:57 pm
My new short D_SHG

Last post by marktownley « Sat Nov 20, 2021 2:35 pm
Replies: 7
by MERRILL » Mon Nov 15, 2021 2:34 am

Rating: 3.43%

7 Replies

480 Views

Last post by marktownley
Sat Nov 20, 2021 2:35 pm
Sol"Ex 3D printed SHG - AAVSO presentation

Last post by marktownley « Sat Nov 20, 2021 2:33 pm
Replies: 2
by Merlin66 » Tue Nov 16, 2021 9:52 pm

Rating: 0.98%

2 Replies

292 Views

Last post by marktownley
Sat Nov 20, 2021 2:33 pm
Radio Meteor detection 09-11-2021

Last post by Carbon60 « Wed Nov 10, 2021 6:15 pm
Replies: 2
by rsfoto » Tue Nov 09, 2021 7:36 pm

Rating: 1.96%

2 Replies

323 Views

Last post by Carbon60
Wed Nov 10, 2021 6:15 pm
H-alpha SHG at 910mm focal length

Last post by thesmiths « Mon Nov 08, 2021 1:47 pm
Replies: 3
by thesmiths » Sun Nov 07, 2021 11:10 pm

Rating: 1.47%

3 Replies

432 Views

Last post by thesmiths
Mon Nov 08, 2021 1:47 pm
G3 Geomagnetic Storm

Last post by marktownley « Sun Nov 07, 2021 5:39 pm
Replies: 12
by Carbon60 » Thu Nov 04, 2021 8:01 am

Rating: 6.86%

12 Replies

534 Views

Last post by marktownley
Sun Nov 07, 2021 5:39 pm
Ca-H images taken with a 1200 l/mm grating and 300mm Canon lens

Last post by marktownley « Sun Nov 07, 2021 11:58 am
Replies: 3
by thesmiths » Fri Nov 05, 2021 10:41 pm

Rating: 2.45%

3 Replies

386 Views

Last post by marktownley
Sun Nov 07, 2021 11:58 am
G1 Geomagnetic storm 31st October 2021

Last post by marktownley « Wed Nov 03, 2021 8:46 pm
Replies: 9
by Carbon60 » Mon Nov 01, 2021 9:48 am

Rating: 5.39%

9 Replies

516 Views

Last post by marktownley
Wed Nov 03, 2021 8:46 pm
Minor CME impact 30th/31st October 2021

Last post by Carbon60 « Wed Nov 03, 2021 6:06 am
Replies: 6
by Carbon60 » Sun Oct 31, 2021 10:16 am

Rating: 3.43%

6 Replies

377 Views

Last post by Carbon60
Wed Nov 03, 2021 6:06 am
MiniSHG - Sun in Helium D3

Last post by marktownley « Tue Nov 02, 2021 9:12 pm
Replies: 2
by Merlin66 » Sun Oct 31, 2021 4:14 am

Rating: 1.96%

2 Replies

299 Views

Last post by marktownley
Tue Nov 02, 2021 9:12 pm
Magnetometer sampling

Last post by Carbon60 « Mon Nov 01, 2021 7:48 am
Replies: 3
by SimonM » Sun Oct 31, 2021 1:10 pm

3 Replies

333 Views

Last post by Carbon60
Mon Nov 01, 2021 7:48 am
So what's the chances of another Aurora on Sunday-Monday Stu ??

Last post by EGRAY_OBSERVATORY « Sun Oct 31, 2021 6:16 pm

by EGRAY_OBSERVATORY » Sun Oct 31, 2021 6:16 pm

0 Replies

186 Views

Last post by EGRAY_OBSERVATORY
Sun Oct 31, 2021 6:16 pm
Orionids 2021 results

Last post by rsfoto « Fri Oct 29, 2021 3:24 pm
Replies: 3
by Wyvern » Thu Oct 28, 2021 9:49 pm

Rating: 1.47%

3 Replies

320 Views

Last post by rsfoto
Fri Oct 29, 2021 3:24 pm
Arids Meteor shower + Mexican stations :-)

Last post by marktownley « Thu Oct 28, 2021 8:12 pm
Replies: 3
by rsfoto » Wed Oct 27, 2021 6:17 pm

Rating: 2.94%

3 Replies

310 Views

Last post by marktownley
Thu Oct 28, 2021 8:12 pm
CME Impact 12th October 2021- UPDATED

Last post by marktownley « Thu Oct 28, 2021 9:08 am
Replies: 12
by Carbon60 » Tue Oct 12, 2021 9:04 am

Rating: 5.39%

12 Replies

905 Views

Last post by marktownley
Thu Oct 28, 2021 9:08 am
MiniSHG - H alpha and CaK

Last post by marktownley « Tue Oct 12, 2021 7:32 pm
Replies: 6
by Merlin66 » Sat Oct 09, 2021 10:55 pm

Rating: 1.96%

6 Replies

534 Views

Last post by marktownley
Tue Oct 12, 2021 7:32 pm
"Heads up" on possible meteor activity.

Last post by Carbon60 « Sun Oct 10, 2021 6:48 am
Replies: 12
by Wyvern » Sun Oct 03, 2021 4:58 pm

Rating: 11.27%

12 Replies

741 Views

Last post by Carbon60
Sun Oct 10, 2021 6:48 am
Geomagnetic Unrest 30th Sept.-2nd Oct. 2021

Last post by Carbon60 « Mon Oct 04, 2021 4:07 pm
Replies: 3
by Carbon60 » Sat Oct 02, 2021 3:34 pm

Rating: 2.45%

3 Replies

314 Views

Last post by Carbon60
Mon Oct 04, 2021 4:07 pm
MiniSHG with Baader 7nm H alpha filter

Last post by marktownley « Sun Oct 03, 2021 8:17 am
Replies: 4
by Merlin66 » Tue Sep 28, 2021 12:50 am

Rating: 2.45%

4 Replies

457 Views

Last post by marktownley
Sun Oct 03, 2021 8:17 am
MiniSHG -H alpha scan

Last post by Merlin66 « Mon Sep 27, 2021 10:29 pm
Replies: 4
by Merlin66 » Wed Sep 22, 2021 6:35 am

Rating: 1.96%

4 Replies

453 Views

Last post by Merlin66
Mon Sep 27, 2021 10:29 pm
h-beta sun SHG

Last post by marktownley « Mon Sep 27, 2021 7:38 pm
Replies: 3
by highfnum » Sun Sep 26, 2021 9:07 pm

Rating: 0.49%

3 Replies

308 Views

Last post by marktownley
Mon Sep 27, 2021 7:38 pm
G1 Geomagnetic Storm 17th September 2021

Last post by Carbon60 « Tue Sep 21, 2021 6:03 pm
Replies: 5
by Carbon60 » Fri Sep 17, 2021 9:31 pm

Rating: 3.43%

5 Replies

442 Views

Last post by Carbon60
Tue Sep 21, 2021 6:03 pm
Geomagnetic Unrest 10th September 2021

Last post by Carbon60 « Tue Sep 14, 2021 12:10 pm
Replies: 4
by Carbon60 » Sat Sep 11, 2021 6:51 am

Rating: 1.96%

4 Replies

462 Views

Last post by Carbon60
Tue Sep 14, 2021 12:10 pm
Smart Phone magnetometer

Last post by RodAstro « Sun Sep 12, 2021 9:55 pm

by RodAstro » Sun Sep 12, 2021 9:55 pm

0 Replies

254 Views

Last post by RodAstro
Sun Sep 12, 2021 9:55 pm
H-alpha full-disk SHG images with a Canon 300mm lens

Last post by thesmiths « Fri Sep 10, 2021 3:06 pm
Replies: 3
by thesmiths » Wed Sep 08, 2021 1:54 pm

Rating: 1.47%

3 Replies

394 Views

Last post by thesmiths
Fri Sep 10, 2021 3:06 pm
CaK full-disk SHG images with a Canon 300mm lens

Last post by Montana « Fri Sep 10, 2021 2:22 pm
Replies: 8
by thesmiths » Tue Sep 07, 2021 5:42 pm

Rating: 3.43%

8 Replies

516 Views

Last post by Montana
Fri Sep 10, 2021 2:22 pm
"Enhanced" Aurigid activity ?????

Last post by rsfoto « Thu Sep 09, 2021 2:10 pm
Replies: 5
by Wyvern » Thu Sep 02, 2021 8:37 pm

Rating: 2.94%

5 Replies

480 Views

Last post by rsfoto
Thu Sep 09, 2021 2:10 pm
SHG Images HA and CA

Last post by PDB « Thu Sep 09, 2021 8:03 am
Replies: 8
by PDB » Mon Sep 06, 2021 2:13 pm

Rating: 0.49%

8 Replies

485 Views

Last post by PDB
Thu Sep 09, 2021 8:03 am
Full-disk SHG images with a Canon 300mm lens

Last post by Montana « Mon Sep 06, 2021 7:26 am
Replies: 4
by thesmiths » Tue Aug 31, 2021 3:18 am

Rating: 3.43%

4 Replies

509 Views

Last post by Montana
Mon Sep 06, 2021 7:26 am
Improved SHG H-alpha imaging at 700mm FL

Last post by DeepSolar64 « Sun Sep 05, 2021 11:49 pm
Replies: 3
by thesmiths » Tue Aug 24, 2021 11:17 pm

Rating: 2.94%

3 Replies

532 Views

Last post by DeepSolar64
Sun Sep 05, 2021 11:49 pm
Perseid meteor shower 2021

Last post by EGRAY_OBSERVATORY « Sat Aug 21, 2021 11:03 am
Replies: 25
by rsfoto » Thu Aug 12, 2021 6:06 pm
1

2
Rating: 14.22%
25 Replies

1385 Views

Last post by EGRAY_OBSERVATORY
Sat Aug 21, 2021 11:03 am
A year of radio meteor data (Aug 2020-2021)

Last post by rsfoto « Wed Aug 18, 2021 4:50 pm
Replies: 5
by Carbon60 » Wed Aug 18, 2021 12:41 pm

Rating: 4.9%

5 Replies

411 Views

Last post by rsfoto
Wed Aug 18, 2021 4:50 pm
caK with SHG

Last post by marktownley « Wed Aug 18, 2021 7:37 am
Replies: 2
by highfnum » Fri Aug 13, 2021 9:26 pm

Rating: 0.49%

2 Replies

341 Views

Last post by marktownley
Wed Aug 18, 2021 7:37 am
Calcium H images -- with prominences!

Last post by thesmiths « Mon Aug 16, 2021 10:52 am
Replies: 4
by thesmiths » Sun Aug 15, 2021 10:13 pm

Rating: 1.96%

4 Replies

437 Views

Last post by thesmiths
Mon Aug 16, 2021 10:52 am
New SHG setup and images in H-alpha and Ca-H

Last post by Montana « Fri Aug 13, 2021 11:52 am
Replies: 7
by thesmiths » Wed Aug 11, 2021 11:34 pm

Rating: 3.43%

7 Replies

530 Views

Last post by Montana
Fri Aug 13, 2021 11:52 am
Co-rotating Interaction Region 7th August 2021

Last post by Carbon60 « Mon Aug 09, 2021 1:43 pm
Replies: 3
by Carbon60 » Sat Aug 07, 2021 7:08 pm

Rating: 3.43%

3 Replies

372 Views

Last post by Carbon60
Mon Aug 09, 2021 1:43 pm
spectrohelioscope at stellafane VT

Last post by Montana « Mon Aug 09, 2021 9:08 am
Replies: 3
by highfnum » Sun Aug 08, 2021 10:22 am

Rating: 0.98%

3 Replies

354 Views

Last post by Montana
Mon Aug 09, 2021 9:08 am
CME side swipe.... 2nd August 2021

Last post by Carbon60 « Thu Aug 05, 2021 9:08 am
Replies: 2
by Carbon60 » Tue Aug 03, 2021 9:23 pm

Rating: 2.45%

2 Replies

326 Views

Last post by Carbon60
Thu Aug 05, 2021 9:08 am
Delta Aquarids July 2021

Last post by Carbon60 « Tue Aug 03, 2021 9:15 pm
Replies: 5
by Carbon60 » Sun Aug 01, 2021 1:28 pm

Rating: 3.92%

5 Replies

455 Views

Last post by Carbon60
Tue Aug 03, 2021 9:15 pm
Aurora and Geomagnetic Unrest 27/28th July 2021

Last post by Carbon60 « Fri Jul 30, 2021 7:20 am
Replies: 5
by Carbon60 » Thu Jul 29, 2021 7:14 am

Rating: 3.43%

5 Replies

417 Views

Last post by Carbon60
Fri Jul 30, 2021 7:20 am
More results with the SolEx SHG

Last post by thesmiths « Mon Jul 26, 2021 11:14 am
Replies: 8
by PDB » Fri Jul 23, 2021 2:46 pm

Rating: 3.43%

8 Replies

805 Views

Last post by thesmiths
Mon Jul 26, 2021 11:14 am
Updated spectroheliography -- hardware improvements and new software workflow

Last post by Merlin66 « Sun Jul 25, 2021 8:10 am
Replies: 11
by thesmiths » Wed Jul 21, 2021 9:11 pm

Rating: 2.45%

11 Replies

841 Views

Last post by Merlin66
Sun Jul 25, 2021 8:10 am
SMA 905 Light Source

Last post by Grakrob778 « Wed Jul 21, 2021 7:45 pm
Replies: 2
by Grakrob778 » Wed Jul 21, 2021 4:07 am

2 Replies

347 Views

Last post by Grakrob778
Wed Jul 21, 2021 7:45 pm
Measurement of the FWHM of two PST etalons

Last post by christian viladrich « Tue Jul 20, 2021 7:34 am
Replies: 10
by christian viladrich » Sun Jul 18, 2021 1:18 pm

Rating: 2.45%

10 Replies

734 Views

Last post by christian viladrich
Tue Jul 20, 2021 7:34 am
Geomagnetic Impulse from X1.5 Class Flare

Last post by marktownley « Mon Jul 19, 2021 7:54 pm
Replies: 4
by Carbon60 » Sun Jul 04, 2021 8:13 am

Rating: 2.45%

4 Replies

469 Views

Last post by marktownley
Mon Jul 19, 2021 7:54 pm
A stunning new SHG image from Christian Buil

Last post by Merlin66 « Sun Jul 18, 2021 4:50 am
Replies: 17
by thesmiths » Wed Jun 30, 2021 11:00 pm

Rating: 6.37%

17 Replies

1270 Views

Last post by Merlin66
Sun Jul 18, 2021 4:50 am
August 3, 2020 Spectroheliograms: the Fraunhofer Four

Last post by DeepSolar64 « Sat Jul 03, 2021 4:11 am
Replies: 10
by p_zetner » Mon Aug 17, 2020 3:30 pm

Rating: 7.35%

10 Replies

1268 Views

Last post by DeepSolar64
Sat Jul 03, 2021 4:11 am
Arietid meteor results

Last post by Carbon60 « Mon Jun 28, 2021 6:55 am
Replies: 8
by Wyvern » Thu Jun 10, 2021 8:39 pm

Rating: 7.84%

8 Replies

755 Views

Last post by Carbon60
Mon Jun 28, 2021 6:55 am
Mass pigeon loss over the weekend

Last post by Montana « Fri Jun 25, 2021 2:28 pm
Replies: 2
by Montana » Fri Jun 25, 2021 10:42 am

Rating: 1.96%

2 Replies

340 Views

Last post by Montana
Fri Jun 25, 2021 2:28 pm
15June: Rare event captured by SHG

Last post by Montana « Sun Jun 20, 2021 11:14 am
Replies: 10
by p_zetner » Fri Jun 18, 2021 9:28 pm

Rating: 3.92%

10 Replies

726 Views

Last post by Montana
Sun Jun 20, 2021 11:14 am
G1 Geomagnetic Storm 16th June 2021

Last post by eroel « Fri Jun 18, 2021 3:38 pm
Replies: 3
by Carbon60 » Wed Jun 16, 2021 4:30 pm

Rating: 1.47%

3 Replies

348 Views

Last post by eroel
Fri Jun 18, 2021 3:38 pm
Why is the Sun visible with 3D Laser Scanning?

Last post by Carbon60 « Fri Jun 18, 2021 1:09 pm
Replies: 8
by AnthonyM » Tue Jun 15, 2021 5:48 am

Rating: 0.49%

8 Replies

443 Views

Last post by Carbon60
Fri Jun 18, 2021 1:09 pm
Spectroheliograph at 700mm FL

Last post by Carbon60 « Tue Jun 15, 2021 5:59 am
Replies: 6
by thesmiths » Mon Jun 14, 2021 12:24 am

Rating: 3.43%

6 Replies

570 Views

Last post by Carbon60
Tue Jun 15, 2021 5:59 am
First time H-alpha SHG imaging

Last post by Montana « Mon Jun 14, 2021 1:11 pm
Replies: 4
by thesmiths » Sun Jun 13, 2021 12:22 am

Rating: 0.98%

4 Replies

465 Views

Last post by Montana
Mon Jun 14, 2021 1:11 pm
Geomagnetic summary for May 2021

Last post by Carbon60 « Thu Jun 10, 2021 7:53 pm
Replies: 4
by Carbon60 » Thu Jun 03, 2021 6:43 am

Rating: 2.45%

4 Replies

407 Views

Last post by Carbon60
Thu Jun 10, 2021 7:53 pm
Magnetometer upgrade 7th June 2021

Last post by Carbon60 « Thu Jun 10, 2021 7:31 pm
Replies: 6
by Carbon60 » Tue Jun 08, 2021 2:53 pm

Rating: 2.94%

6 Replies

413 Views

Last post by Carbon60
Thu Jun 10, 2021 7:31 pm
New foam board spectroheliograph results

Last post by thesmiths « Thu Jun 10, 2021 3:41 pm
Replies: 2
by thesmiths » Tue Jun 08, 2021 9:10 pm

Rating: 0.98%

2 Replies

367 Views

Last post by thesmiths
Thu Jun 10, 2021 3:41 pm
Spectroheliograph built with foam board and a hot glue gun

Last post by marktownley « Tue Jun 08, 2021 3:45 pm
Replies: 5
by thesmiths » Sat Jun 05, 2021 12:54 am

Rating: 4.9%

5 Replies

681 Views

Last post by marktownley
Tue Jun 08, 2021 3:45 pm
Measurements of Ca K filters with Sol'Ex spectrograph

Last post by marktownley « Tue Jun 08, 2021 3:35 pm
Replies: 3
by christian viladrich » Tue Jun 08, 2021 11:17 am

Rating: 0.98%

3 Replies

370 Views

Last post by marktownley
Tue Jun 08, 2021 3:35 pm
Fun with the SHG

Last post by PDB « Tue Jun 08, 2021 11:43 am
Replies: 10
by PDB » Mon Jun 07, 2021 10:43 am

Rating: 5.39%

10 Replies

703 Views

Last post by PDB
Tue Jun 08, 2021 11:43 am
Measuring solar wind

Last post by Carbon60 « Tue Jun 01, 2021 5:50 am
Replies: 10
by SimonM » Thu Mar 11, 2021 10:23 pm

Rating: 4.9%

10 Replies

737 Views

Last post by Carbon60
Tue Jun 01, 2021 5:50 am
Mercury sodium tail

Last post by KMH « Tue May 25, 2021 1:19 am
Replies: 16
by KMH » Sun May 16, 2021 4:21 am

Rating: 0.49%

16 Replies

794 Views

Last post by KMH
Tue May 25, 2021 1:19 am
SOLEX spectrohelograph project - 3D printing DIY

Last post by PDB « Mon May 24, 2021 8:36 pm
Replies: 21
by christian viladrich » Fri Jan 22, 2021 12:23 pm

Rating: 5.39%

21 Replies

1729 Views

Last post by PDB
Mon May 24, 2021 8:36 pm
my SHG and using it to test some solar filters

Last post by highfnum « Mon May 17, 2021 8:23 pm
Replies: 9
by highfnum » Wed May 12, 2021 8:20 pm

Rating: 2.45%

9 Replies

707 Views

Last post by highfnum
Mon May 17, 2021 8:23 pm
CME Impact 12th May 2021-UPDATED

Last post by marktownley « Sat May 15, 2021 1:56 pm
Replies: 8
by Carbon60 » Wed May 12, 2021 2:48 pm

Rating: 4.9%

8 Replies

566 Views

Last post by marktownley
Sat May 15, 2021 1:56 pm
Eta Aquarid meteor shower May 5

Last post by Carbon60 « Fri May 14, 2021 7:57 am
Replies: 9
by rsfoto » Wed May 05, 2021 5:37 pm

Rating: 10.29%

9 Replies

630 Views

Last post by Carbon60
Fri May 14, 2021 7:57 am
Nice Meteor Activity

Last post by Montana « Mon May 10, 2021 4:53 pm
Replies: 1
by rsfoto » Mon May 10, 2021 3:31 pm

Rating: 0.98%

1 Replies

303 Views

Last post by Montana
Mon May 10, 2021 4:53 pm
Radio meteor detection - Lyrids

Last post by rsfoto « Sat May 01, 2021 7:43 pm
Replies: 7
by JochenM » Sat May 01, 2021 10:20 am

Rating: 2.94%

7 Replies

558 Views

Last post by rsfoto
Sat May 01, 2021 7:43 pm
Lyrids April 2021_Radio Detection

Last post by EGRAY_OBSERVATORY « Mon Apr 26, 2021 1:04 am
Replies: 6
by Carbon60 » Fri Apr 23, 2021 6:36 am

Rating: 4.41%

6 Replies

521 Views

Last post by EGRAY_OBSERVATORY
Mon Apr 26, 2021 1:04 am
Lyrids April 2021

Last post by MapleRidge « Sun Apr 25, 2021 12:01 pm
Replies: 11
by rsfoto » Thu Apr 22, 2021 5:03 pm

Rating: 6.37%

11 Replies

673 Views

Last post by MapleRidge
Sun Apr 25, 2021 12:01 pm
G1 Geomagnetic Storms 15-17th April 2021-Updated

Last post by marktownley « Wed Apr 21, 2021 7:56 pm
Replies: 8
by Carbon60 » Sat Apr 17, 2021 7:29 am

Rating: 4.41%

8 Replies

664 Views

Last post by marktownley
Wed Apr 21, 2021 7:56 pm
Zeeman effect in helium using a home-made Fabry-Perot etalon

Last post by thesmiths « Tue Apr 06, 2021 4:27 pm
Replies: 8
by thesmiths » Tue Feb 23, 2021 2:54 am

Rating: 3.92%

8 Replies

982 Views

Last post by thesmiths
Tue Apr 06, 2021 4:27 pm
SHG h-beta caK

Last post by Montana « Tue Apr 06, 2021 7:06 am
Replies: 2
by highfnum » Mon Apr 05, 2021 11:47 pm

Rating: 1.47%

2 Replies

379 Views

Last post by Montana
Tue Apr 06, 2021 7:06 am
Geomagnetic Unrest 20th March 2021- UPDATED

Last post by marktownley « Sun Mar 28, 2021 10:28 am
Replies: 4
by Carbon60 » Sat Mar 20, 2021 4:46 pm

Rating: 3.43%

4 Replies

503 Views

Last post by marktownley
Sun Mar 28, 2021 10:28 am
Zeeman effect in neon using the home-made etalon

Last post by thesmiths « Wed Mar 24, 2021 5:55 pm
Replies: 2
by thesmiths » Wed Mar 17, 2021 1:06 am

Rating: 2.45%

2 Replies

424 Views

Last post by thesmiths
Wed Mar 24, 2021 5:55 pm
G1 Geomagnetic Storm 13th March 2021

Last post by marktownley « Sat Mar 20, 2021 10:38 am
Replies: 6
by Carbon60 » Sun Mar 14, 2021 4:36 pm

Rating: 2.45%

6 Replies

478 Views

Last post by marktownley
Sat Mar 20, 2021 10:38 am
Quantitative and qualitative test of etalons with an Ha tube

Last post by christian viladrich « Wed Mar 17, 2021 5:54 pm
Replies: 18
by christian viladrich » Sun Feb 07, 2021 9:56 pm

Rating: 9.31%

18 Replies

1456 Views

Last post by christian viladrich
Wed Mar 17, 2021 5:54 pm
Radio meteor detection- Feb 2021

Last post by marktownley « Sun Mar 14, 2021 7:05 am
Replies: 4
by Carbon60 » Wed Mar 10, 2021 3:25 pm

Rating: 2.45%

4 Replies

421 Views

Last post by marktownley
Sun Mar 14, 2021 7:05 am
Zeeman effect in mercury using the home-made Fabry-Perot (with gifs!)

Last post by thesmiths « Sun Mar 07, 2021 2:41 am
Replies: 3
by thesmiths » Mon Mar 01, 2021 2:54 am

Rating: 1.47%

3 Replies

418 Views

Last post by thesmiths
Sun Mar 07, 2021 2:41 am
H spectrum tube first light

Last post by christian viladrich « Sat Mar 06, 2021 11:16 am
Replies: 1
by Fabio_Imm » Fri Mar 05, 2021 6:53 pm

Rating: 0.98%

1 Replies

340 Views

Last post by christian viladrich
Sat Mar 06, 2021 11:16 am
G1 Geomagnetic Storm

Last post by Montana « Fri Mar 05, 2021 9:02 am
Replies: 3
by Carbon60 » Wed Mar 03, 2021 8:31 pm

Rating: 0.98%

3 Replies

354 Views

Last post by Montana
Fri Mar 05, 2021 9:02 am
Radio meteor detection - Feb 2021

Last post by marktownley « Wed Mar 03, 2021 8:16 pm
Replies: 6
by JochenM » Mon Mar 01, 2021 8:30 am

Rating: 3.92%

6 Replies

473 Views

Last post by marktownley
Wed Mar 03, 2021 8:16 pm
Testing a Daystar QPE 0.6A filter with a H spectrum tube.

Last post by LTHB « Wed Mar 03, 2021 10:33 am
Replies: 4
by p_zetner » Sun Feb 28, 2021 9:14 pm

Rating: 1.96%

4 Replies

556 Views

Last post by LTHB
Wed Mar 03, 2021 10:33 am
Testing a Lunt LS50FHa etalon with a H spectrum tube.

Last post by christian viladrich « Fri Feb 26, 2021 10:22 am
Replies: 14
by p_zetner » Mon Feb 22, 2021 11:33 pm

Rating: 8.33%

14 Replies

1359 Views

Last post by christian viladrich
Fri Feb 26, 2021 10:22 am
A New Spectroheliograph

Last post by MalVeauX « Mon Feb 22, 2021 8:11 pm
Replies: 8
by p_zetner » Fri Feb 19, 2021 11:50 pm

Rating: 6.37%

8 Replies

886 Views

Last post by MalVeauX
Mon Feb 22, 2021 8:11 pm
Geomagnetic Activity 18th-20th February 2021

Last post by Carbon60 « Sun Feb 21, 2021 5:22 pm
Replies: 3
by Carbon60 » Sat Feb 20, 2021 6:30 pm

Rating: 3.92%

3 Replies

342 Views

Last post by Carbon60
Sun Feb 21, 2021 5:22 pm
Fabry-Perot etalon testing: Zeeman splitting of neon

Last post by thesmiths « Thu Feb 18, 2021 1:34 am
Replies: 14
by thesmiths » Fri Feb 12, 2021 10:52 pm

Rating: 3.92%

14 Replies

1077 Views

Last post by thesmiths
Thu Feb 18, 2021 1:34 am
A hydrogen spectrum tube-- for fun and etalon testing

Last post by Merlin66 « Tue Feb 16, 2021 4:45 am
Replies: 20
by thesmiths » Fri Feb 05, 2021 9:28 pm

Rating: 7.35%

20 Replies

1402 Views

Last post by Merlin66
Tue Feb 16, 2021 4:45 am
G1 Geomagnetic Storm 6-7th Feb '21-UPDATED

Last post by Carbon60 « Fri Feb 12, 2021 8:16 pm
Replies: 11
by Carbon60 » Sun Feb 07, 2021 8:31 am

Rating: 4.9%

11 Replies

646 Views

Last post by Carbon60
Fri Feb 12, 2021 8:16 pm
Geomagnetic Surprise 8th Feb 2021

Last post by marktownley « Thu Feb 11, 2021 7:57 pm
Replies: 5
by Carbon60 » Wed Feb 10, 2021 7:22 am

Rating: 3.92%

5 Replies

406 Views

Last post by marktownley
Thu Feb 11, 2021 7:57 pm
Home-made Fabry-Perot etalon project

Last post by marktownley « Wed Feb 10, 2021 5:43 pm
Replies: 5
by thesmiths » Wed Feb 10, 2021 12:51 am

Rating: 2.94%

5 Replies

508 Views

Last post by marktownley
Wed Feb 10, 2021 5:43 pm
Geomagnetic Summary for January 2021

Last post by Carbon60 « Tue Feb 09, 2021 6:22 am
Replies: 4
by Carbon60 » Mon Feb 01, 2021 6:50 pm

Rating: 1.96%

4 Replies

403 Views

Last post by Carbon60
Tue Feb 09, 2021 6:22 am
Geomagnetic Unrest- 2nd Feb 2021-UPDATED

Last post by Carbon60 « Tue Feb 09, 2021 6:20 am
Replies: 6
by Carbon60 » Tue Feb 02, 2021 7:40 pm

Rating: 4.41%

6 Replies

453 Views

Last post by Carbon60
Tue Feb 09, 2021 6:20 am
Quadrantid Meteor Data from the UK-UPDATED

Last post by marktownley « Mon Feb 08, 2021 9:24 pm
Replies: 12
by Carbon60 » Mon Jan 04, 2021 7:23 am

Rating: 6.86%

12 Replies

811 Views

Last post by marktownley
Mon Feb 08, 2021 9:24 pm
RMO and January 2021

Last post by marktownley « Mon Feb 08, 2021 9:23 pm
Replies: 3
by rsfoto » Sun Jan 31, 2021 4:07 pm

Rating: 1.96%

3 Replies

383 Views

Last post by marktownley
Mon Feb 08, 2021 9:23 pm
Research suggestions

Last post by christian viladrich « Sat Feb 06, 2021 3:17 pm
Replies: 3
by willisobservatory » Sun Jan 24, 2021 10:35 pm

Rating: 1.96%

3 Replies

483 Views

Last post by christian viladrich
Sat Feb 06, 2021 3:17 pm
G1 Geomagnetic Storm 25th-27th Jan '21

Last post by rsfoto « Sun Jan 31, 2021 3:54 pm
Replies: 6
by Carbon60 » Wed Jan 27, 2021 10:50 am

Rating: 2.94%

6 Replies

479 Views

Last post by rsfoto
Sun Jan 31, 2021 3:54 pm
Atomic wavelengths

Last post by Montana « Wed Jan 27, 2021 3:08 pm
Replies: 2
by marios i. » Wed Jan 27, 2021 4:23 am

Rating: 0.49%

2 Replies

391 Views

Last post by Montana
Wed Jan 27, 2021 3:08 pm
Geoeffective Shockwave

Last post by Carbon60 « Wed Jan 13, 2021 6:56 am
Replies: 7
by Carbon60 » Mon Jan 11, 2021 10:06 pm

Rating: 5.39%

7 Replies

662 Views

Last post by Carbon60
Wed Jan 13, 2021 6:56 am
First Geomagnetic Activity of 2021

Last post by Carbon60 « Sun Jan 10, 2021 10:39 am
Replies: 4
by Carbon60 » Thu Jan 07, 2021 8:36 am

Rating: 2.94%

4 Replies

480 Views

Last post by Carbon60
Sun Jan 10, 2021 10:39 am
Geomagnetic Summary for 2020

Last post by marktownley « Tue Jan 05, 2021 6:51 am
Replies: 4
by Carbon60 » Mon Jan 04, 2021 7:50 am

Rating: 2.94%

4 Replies

437 Views

Last post by marktownley
Tue Jan 05, 2021 6:51 am
Quadrantids January 3 2021

Last post by rsfoto « Mon Jan 04, 2021 4:04 pm
Replies: 5
by rsfoto » Sun Jan 03, 2021 4:10 pm

Rating: 4.9%

5 Replies

459 Views

Last post by rsfoto
Mon Jan 04, 2021 4:04 pm
Geomagnetic Unrest/G1 storm 23rd December 2020

Last post by marktownley « Sun Dec 27, 2020 2:58 pm
Replies: 3
by Carbon60 » Wed Dec 23, 2020 7:27 am

Rating: 1.96%

3 Replies

471 Views

Last post by marktownley
Sun Dec 27, 2020 2:58 pm
Radio Detected Ursids

Last post by marktownley « Sun Dec 27, 2020 2:57 pm
Replies: 7
by Carbon60 » Thu Dec 24, 2020 6:50 am

Rating: 5.39%

7 Replies

550 Views

Last post by marktownley
Sun Dec 27, 2020 2:57 pm
Radio Detected Geminids December 2020-UPDATED (2)

Last post by Carbon60 « Tue Dec 22, 2020 8:39 am
Replies: 18
by Carbon60 » Sun Dec 13, 2020 8:52 am

Rating: 11.76%

18 Replies

1308 Views

Last post by Carbon60
Tue Dec 22, 2020 8:39 am
14/12/2020 Solar eclipse flash Spectrum

Last post by LTHB « Mon Dec 21, 2020 6:07 pm
Replies: 3
by rsfoto » Wed Dec 16, 2020 11:05 pm

Rating: 1.47%

3 Replies

469 Views

Last post by LTHB
Mon Dec 21, 2020 6:07 pm
Solar Spectroscopy

Last post by Merlin66 « Tue Dec 15, 2020 12:40 am
Replies: 17
by rsfoto » Sat Dec 05, 2020 3:58 pm

Rating: 5.39%

17 Replies

1424 Views

Last post by Merlin66
Tue Dec 15, 2020 12:40 am
Radio Detected Leonids November 2020

Last post by marktownley « Sat Dec 05, 2020 3:54 pm
Replies: 28
by Carbon60 » Fri Nov 20, 2020 7:43 am
1

2
Rating: 9.31%
28 Replies

1902 Views

Last post by marktownley
Sat Dec 05, 2020 3:54 pm
Geomagnetic Activity 20th-22nd November 2020

Last post by marktownley « Sat Dec 05, 2020 8:39 am
Replies: 6
by Carbon60 » Sun Nov 22, 2020 3:43 pm

Rating: 2.94%

6 Replies

573 Views

Last post by marktownley
Sat Dec 05, 2020 8:39 am
Radio Detected Orionids 2020

Last post by marktownley « Sun Nov 15, 2020 11:23 am
Replies: 8
by Carbon60 » Sun Nov 08, 2020 8:46 am

Rating: 3.92%

8 Replies

914 Views

Last post by marktownley
Sun Nov 15, 2020 11:23 am
Geomagnetic Activity 23rd-26th October 2020

Last post by marktownley « Thu Oct 29, 2020 2:28 pm
Replies: 6
by Carbon60 » Mon Oct 26, 2020 7:23 pm

Rating: 0.98%

6 Replies

825 Views

Last post by marktownley
Thu Oct 29, 2020 2:28 pm
Orionids by radio detection-UPDATED

Last post by marktownley « Thu Oct 29, 2020 2:27 pm
Replies: 12
by Carbon60 » Thu Oct 22, 2020 6:49 pm

Rating: 3.43%

12 Replies

915 Views

Last post by marktownley
Thu Oct 29, 2020 2:27 pm
my new old spectroscopy book

Last post by Merlin66 « Thu Oct 29, 2020 1:29 am
Replies: 12
by highfnum » Mon Oct 26, 2020 11:27 pm

Rating: 0.98%

12 Replies

927 Views

Last post by Merlin66
Thu Oct 29, 2020 1:29 am
Magnetometry-summary data for August/September

Last post by p_zetner « Tue Oct 13, 2020 12:52 pm
Replies: 3
by Carbon60 » Mon Oct 12, 2020 1:50 pm

Rating: 2.45%

3 Replies

661 Views

Last post by p_zetner
Tue Oct 13, 2020 12:52 pm
Radio meteor detection of the Draconids (October 2020)

Last post by marktownley « Mon Oct 12, 2020 9:28 pm
Replies: 2
by Carbon60 » Mon Oct 12, 2020 2:00 pm

Rating: 0.49%

2 Replies

420 Views

Last post by marktownley
Mon Oct 12, 2020 9:28 pm
Geomagnetic Activity 22-25th Sept. 2020- Updated

Last post by Carbon60 « Thu Oct 01, 2020 5:17 pm
Replies: 5
by Carbon60 » Fri Sep 25, 2020 7:34 pm

Rating: 2.45%

5 Replies

769 Views

Last post by Carbon60
Thu Oct 01, 2020 5:17 pm
Perseid Meteor Detection by Radio

Last post by rsfoto « Wed Sep 30, 2020 2:37 pm
Replies: 99
by Carbon60 » Sun Aug 16, 2020 5:31 pm
1

2

3

4
Rating: 21.57%
99 Replies

6796 Views

Last post by rsfoto
Wed Sep 30, 2020 2:37 pm
August Radio Meteor Detection- 2020

Last post by Montana « Thu Sep 24, 2020 7:05 am
Replies: 2
by Carbon60 » Wed Sep 23, 2020 8:11 pm

2 Replies

446 Views

Last post by Montana
Thu Sep 24, 2020 7:05 am
Geomagnetic Activity Rumbles on- 2nd Sept 20

Last post by Carbon60 « Fri Sep 04, 2020 6:07 am
Replies: 3
by Carbon60 » Wed Sep 02, 2020 6:32 am

Rating: 1.96%

3 Replies

530 Views

Last post by Carbon60
Fri Sep 04, 2020 6:07 am
G1 Geomagnetic Storm

Last post by marktownley « Mon Aug 31, 2020 3:19 pm
Replies: 2
by Carbon60 » Sat Aug 29, 2020 4:20 pm

2 Replies

451 Views

Last post by marktownley
Mon Aug 31, 2020 3:19 pm
Weak CME impact 13th July 2020

Last post by Carbon60 « Sat Aug 15, 2020 5:05 am
Replies: 9
by Carbon60 » Sat Jul 18, 2020 10:54 am

Rating: 3.43%

9 Replies

1406 Views

Last post by Carbon60
Sat Aug 15, 2020 5:05 am
August 3, 2020: Calcium Trio

Last post by solarGain « Thu Aug 13, 2020 9:29 am
Replies: 9
by p_zetner » Fri Aug 07, 2020 4:33 am

Rating: 4.9%

9 Replies

1242 Views

Last post by solarGain
Thu Aug 13, 2020 9:29 am
28 July: Portrait of AR12767 in 4 Fraunhofer Lines.

Last post by p_zetner « Fri Aug 07, 2020 5:50 pm
Replies: 5
by p_zetner » Fri Jul 31, 2020 9:40 pm

Rating: 2.94%

5 Replies

995 Views

Last post by p_zetner
Fri Aug 07, 2020 5:50 pm
Geomagnetic activity July and 3rd Aug. '20

Last post by Carbon60 « Fri Aug 07, 2020 5:36 am
Replies: 5
by Carbon60 » Tue Aug 04, 2020 7:20 pm

Rating: 1.47%

5 Replies

780 Views

Last post by Carbon60
Fri Aug 07, 2020 5:36 am
Geomagnetic Activity 24th/25th July 2020

Last post by Carbon60 « Sun Jul 26, 2020 4:50 pm
Replies: 3
by Carbon60 » Sat Jul 25, 2020 10:50 am

Rating: 0.98%

3 Replies

707 Views

Last post by Carbon60
Sun Jul 26, 2020 4:50 pm
SHS/ SHG Holographic Grating choices

Last post by solarGain « Wed Jul 22, 2020 6:48 am
Replies: 9
by solarGain » Fri Jul 17, 2020 9:59 am

9 Replies

1475 Views

Last post by solarGain
Wed Jul 22, 2020 6:48 am
12 June 2020 Spectroheliograms

Last post by p_zetner « Wed Jul 15, 2020 8:17 pm
Replies: 16
by p_zetner » Sat Jun 27, 2020 3:49 am

Rating: 4.41%

16 Replies

2321 Views

Last post by p_zetner
Wed Jul 15, 2020 8:17 pm
Solar spectrum help required, please

Last post by huwiler « Tue Jul 14, 2020 8:43 am
Replies: 15
by Carbon60 » Mon Jun 01, 2020 9:16 pm

Rating: 5.88%

15 Replies

1983 Views

Last post by huwiler
Tue Jul 14, 2020 8:43 am
Untransversaliumisator : SHGrams processing software

Last post by Phil Rousselle « Fri Jul 03, 2020 7:49 am

by Phil Rousselle » Fri Jul 03, 2020 7:49 am

Rating: 0.98%

0 Replies

905 Views

Last post by Phil Rousselle
Fri Jul 03, 2020 7:49 am
Pc5 Geomagnetic Pulsations

Last post by Carbon60 « Sat Jun 27, 2020 6:59 am
Replies: 9
by Carbon60 » Thu Jun 25, 2020 6:22 am

Rating: 4.9%

9 Replies

1218 Views

Last post by Carbon60
Sat Jun 27, 2020 6:59 am
simple caK shot

Last post by Montana « Thu Jun 25, 2020 1:22 pm
Replies: 4
by highfnum » Sat Jun 20, 2020 10:10 am

Rating: 0.49%

4 Replies

786 Views

Last post by Montana
Thu Jun 25, 2020 1:22 pm
20200613 H-beta Sun

Last post by highfnum « Sat Jun 20, 2020 10:05 am
Replies: 5
by Wah » Sat Jun 13, 2020 10:03 am

Rating: 1.47%

5 Replies

986 Views

Last post by highfnum
Sat Jun 20, 2020 10:05 am
Coming back...

Last post by Wah « Mon Jun 15, 2020 7:42 am
Replies: 42
by Wah » Fri May 29, 2020 1:13 am
1

2
Rating: 1.96%
42 Replies

4128 Views

Last post by Wah
Mon Jun 15, 2020 7:42 am
New spots, new observations on june 8th

Last post by Carbon60 « Thu Jun 11, 2020 6:42 am
Replies: 7
by Phil Rousselle » Tue Jun 09, 2020 5:56 pm

Rating: 1.96%

7 Replies

997 Views

Last post by Carbon60
Thu Jun 11, 2020 6:42 am
several frequencies of current spot

Last post by marktownley « Wed Jun 10, 2020 7:44 pm
Replies: 3
by highfnum » Wed Jun 10, 2020 4:18 am

Rating: 0.49%

3 Replies

658 Views

Last post by marktownley
Wed Jun 10, 2020 7:44 pm
Today's solar surface by SHG

Last post by Phil Rousselle « Tue Jun 09, 2020 5:41 pm
Replies: 10
by MERRILL » Tue Apr 28, 2020 12:30 am

Rating: 2.45%

10 Replies

2586 Views

Last post by Phil Rousselle
Tue Jun 09, 2020 5:41 pm
Magnetometer data May 2020

Last post by Carbon60 « Sun Jun 07, 2020 6:25 am
Replies: 4
by Carbon60 » Wed Jun 03, 2020 7:50 am

Rating: 3.43%

4 Replies

751 Views

Last post by Carbon60
Sun Jun 07, 2020 6:25 am
My smallest spectroscope first light

Last post by p_zetner « Fri Jun 05, 2020 8:22 pm
Replies: 6
by Wah » Fri Jun 05, 2020 12:48 am

Rating: 0.98%

6 Replies

1067 Views

Last post by p_zetner
Fri Jun 05, 2020 8:22 pm
Who is going to capture the flash spectrum of the upcoming annular eclipse?

Last post by Wah « Tue Jun 02, 2020 10:54 pm
Replies: 2
by Wah » Tue Jun 02, 2020 9:20 am

2 Replies

660 Views

Last post by Wah
Tue Jun 02, 2020 10:54 pm
Quick first light

Last post by Wah « Mon Jun 01, 2020 11:38 pm
Replies: 4
by Wah » Sun May 31, 2020 11:51 pm

Rating: 1.47%

4 Replies

791 Views

Last post by Wah
Mon Jun 01, 2020 11:38 pm
SHG 5 5 2020

Last post by highfnum « Fri May 08, 2020 1:46 pm
Replies: 3
by highfnum » Thu May 07, 2020 11:04 am

Rating: 0.98%

3 Replies

914 Views

Last post by highfnum
Fri May 08, 2020 1:46 pm
apr 28 shg caH caK

Last post by MapleRidge « Wed Apr 29, 2020 11:02 pm
Replies: 5
by highfnum » Tue Apr 28, 2020 10:55 pm

Rating: 0.98%

5 Replies

1356 Views

Last post by MapleRidge
Wed Apr 29, 2020 11:02 pm
Geomagnetic Activity 31st March 2020

Last post by Montana « Tue Mar 31, 2020 7:45 am
Replies: 2
by Carbon60 » Tue Mar 31, 2020 6:16 am

2 Replies

5226 Views

Last post by Montana
Tue Mar 31, 2020 7:45 am
Geomagnetic Activity 19th March

Last post by Carbon60 « Tue Mar 24, 2020 6:58 am
Replies: 5
by Carbon60 » Thu Mar 19, 2020 5:07 pm

5 Replies

3742 Views

Last post by Carbon60
Tue Mar 24, 2020 6:58 am
ar2758 with SHG

Last post by Montana « Tue Mar 10, 2020 7:58 am
Replies: 6
by highfnum » Mon Mar 09, 2020 11:51 pm

6 Replies

6742 Views

Last post by Montana
Tue Mar 10, 2020 7:58 am
old man is snoring

Last post by marktownley « Fri Mar 06, 2020 7:28 pm
Replies: 20
by highfnum » Mon Feb 17, 2020 5:29 pm

20 Replies

13695 Views

Last post by marktownley
Fri Mar 06, 2020 7:28 pm
Geomagnetic Activity- January 2020 Summary

Last post by Carbon60 « Mon Feb 03, 2020 7:40 pm
Replies: 2
by Carbon60 » Sun Feb 02, 2020 2:22 pm

2 Replies

4168 Views

Last post by Carbon60
Mon Feb 03, 2020 7:40 pm
Further Geomagnetic Unrest 21st 23rd Jan 2020

Last post by Carbon60 « Tue Jan 28, 2020 6:35 am
Replies: 4
by Carbon60 » Fri Jan 24, 2020 12:21 pm

4 Replies

4227 Views

Last post by Carbon60
Tue Jan 28, 2020 6:35 am
Geomagnetic Unrest Jan 2020

Last post by Carbon60 « Tue Jan 14, 2020 6:38 am
Replies: 4
by Carbon60 » Sat Jan 11, 2020 8:43 am

4 Replies

4175 Views

Last post by Carbon60
Tue Jan 14, 2020 6:38 am
SHG caH cak

Last post by Montana « Thu Nov 28, 2019 7:59 am
Replies: 26
by highfnum » Mon Oct 21, 2019 10:17 pm
1

2
26 Replies

7148 Views

Last post by Montana
Thu Nov 28, 2019 7:59 am
Further geomagnetic activity 21st-23rd Nov.

Last post by Montana « Mon Nov 25, 2019 8:03 am
Replies: 2
by Carbon60 » Sat Nov 23, 2019 4:42 pm

2 Replies

1929 Views

Last post by Montana
Mon Nov 25, 2019 8:03 am
Minor geomagnetic storm

Last post by MapleRidge « Fri Nov 22, 2019 11:18 pm
Replies: 6
by Carbon60 » Sun Nov 17, 2019 12:25 pm

6 Replies

2467 Views

Last post by MapleRidge
Fri Nov 22, 2019 11:18 pm
3D printing and SHG

Last post by Montana « Sun Nov 17, 2019 12:30 pm
Replies: 15
by taratasy » Thu Oct 31, 2019 2:53 am

15 Replies

4199 Views

Last post by Montana
Sun Nov 17, 2019 12:30 pm
Magnetometer Back Online

Last post by MapleRidge « Sat Nov 16, 2019 1:25 am
Replies: 6
by Carbon60 » Wed Nov 13, 2019 8:15 pm

6 Replies

2365 Views

Last post by MapleRidge
Sat Nov 16, 2019 1:25 am
large spectroheliograph - India

Last post by george9 « Fri Nov 15, 2019 12:29 am
Replies: 10
by highfnum » Thu Nov 07, 2019 5:16 pm

10 Replies

3261 Views

Last post by george9
Fri Nov 15, 2019 12:29 am
14May2019 Spectroheliograms: A Sunspot Study

Last post by Merrill55 « Thu Nov 14, 2019 10:13 am
Replies: 6
by p_zetner » Thu Oct 31, 2019 6:52 pm

6 Replies

3121 Views

Last post by Merrill55
Thu Nov 14, 2019 10:13 am
anyone know about this guy

Last post by highfnum « Mon Oct 21, 2019 4:53 pm
Replies: 6
by highfnum » Fri Oct 18, 2019 11:28 pm

6 Replies

2600 Views

Last post by highfnum
Mon Oct 21, 2019 4:53 pm
G1 Geomagnetic Storm

Last post by Montana « Mon Sep 30, 2019 9:08 am
Replies: 3
by Carbon60 » Sat Sep 28, 2019 6:38 am

3 Replies

2409 Views

Last post by Montana
Mon Sep 30, 2019 9:08 am
14May2019 Spectroheliograms: H alpha

Last post by LTHB « Thu Sep 19, 2019 5:59 pm
Replies: 9
by p_zetner » Thu Sep 12, 2019 9:31 pm

9 Replies

3441 Views

Last post by LTHB
Thu Sep 19, 2019 5:59 pm
SHG build, Lucky find or not

Last post by Martin_S « Tue Sep 17, 2019 11:06 pm
Replies: 4
by Martin_S » Fri Sep 13, 2019 9:53 am

4 Replies

2398 Views

Last post by Martin_S
Tue Sep 17, 2019 11:06 pm
New G1/G2 solar storm.... New data added

Last post by Montana « Tue Sep 17, 2019 9:19 am
Replies: 6
by Carbon60 » Sat Aug 31, 2019 4:42 pm

6 Replies

2766 Views

Last post by Montana
Tue Sep 17, 2019 9:19 am
G1 Geomagnetic Storm Rumbles On

Last post by Carbon60 « Mon Aug 12, 2019 4:55 pm
Replies: 4
by Carbon60 » Sun Aug 11, 2019 4:50 pm

4 Replies

2394 Views

Last post by Carbon60
Mon Aug 12, 2019 4:55 pm
SHS at stellafane VT 2019

Last post by highfnum « Mon Aug 05, 2019 11:35 am
Replies: 11
by highfnum » Sun Aug 04, 2019 8:45 pm

11 Replies

3701 Views

Last post by highfnum
Mon Aug 05, 2019 11:35 am
3-month summer comparisons 2017-2019

Last post by Carbon60 « Mon Aug 05, 2019 9:31 am
Replies: 5
by Carbon60 » Sat Aug 03, 2019 8:39 pm

5 Replies

2410 Views

Last post by Carbon60
Mon Aug 05, 2019 9:31 am
Long focus singlet lenses-Surplus Shed

Last post by marktownley « Thu Aug 01, 2019 10:51 pm
Replies: 6
by Merlin66 » Mon Jul 29, 2019 10:15 pm

6 Replies

2718 Views

Last post by marktownley
Thu Aug 01, 2019 10:51 pm
cak present and past

Last post by Montana « Thu Aug 01, 2019 6:31 am
Replies: 49
by highfnum » Sat May 18, 2019 8:16 pm
1

2
49 Replies

10753 Views

Last post by Montana
Thu Aug 01, 2019 6:31 am
shg a few freq

Last post by highfnum « Sat Jul 27, 2019 2:38 pm
Replies: 6
by highfnum » Thu Jul 25, 2019 2:12 am

6 Replies

2476 Views

Last post by highfnum
Sat Jul 27, 2019 2:38 pm
h-beta sun 3 brightness levels

Last post by Montana « Wed Jul 17, 2019 10:53 am
Replies: 3
by highfnum » Tue Jul 16, 2019 11:44 pm

3 Replies

2232 Views

Last post by Montana
Wed Jul 17, 2019 10:53 am
question on Young's F line image

Last post by Merlin66 « Thu Jun 27, 2019 10:21 am
Replies: 4
by highfnum » Tue Jun 25, 2019 5:28 pm

4 Replies

2366 Views

Last post by Merlin66
Thu Jun 27, 2019 10:21 am
A 19th century PST

Last post by highfnum « Mon Jun 24, 2019 10:08 pm
Replies: 5
by highfnum » Fri Jun 21, 2019 6:09 pm

5 Replies

2608 Views

Last post by highfnum
Mon Jun 24, 2019 10:08 pm
can someone explain double reversal?

Last post by highfnum « Thu Jun 13, 2019 10:27 am
Replies: 3
by highfnum » Wed Jun 12, 2019 12:35 am

3 Replies

2650 Views

Last post by highfnum
Thu Jun 13, 2019 10:27 am
Ha sun with SHG

Last post by Montana « Tue Jun 04, 2019 6:52 am
Replies: 9
by highfnum » Mon May 27, 2019 3:56 pm

9 Replies

3093 Views

Last post by Montana
Tue Jun 04, 2019 6:52 am
Geomagnetic Unrest May 2019

Last post by marktownley « Sun May 05, 2019 11:17 am
Replies: 3
by Carbon60 » Fri May 03, 2019 7:42 am

3 Replies

2199 Views

Last post by marktownley
Sun May 05, 2019 11:17 am
G1 Geomagnetic Storm 28th Feb '19

Last post by MapleRidge « Thu Apr 11, 2019 12:31 am
Replies: 3
by Carbon60 » Thu Feb 28, 2019 7:29 pm

3 Replies

2830 Views

Last post by MapleRidge
Thu Apr 11, 2019 12:31 am
Geomagnetic storm 1st Feb 2019

Last post by Carbon60 « Mon Feb 04, 2019 9:18 pm
Replies: 9
by Carbon60 » Fri Feb 01, 2019 7:36 pm

9 Replies

3658 Views

Last post by Carbon60
Mon Feb 04, 2019 9:18 pm
New Geomagnetic Storm Arrives 4th Jan 2019

Last post by MapleRidge « Fri Jan 11, 2019 4:36 am
Replies: 3
by Carbon60 » Sat Jan 05, 2019 9:42 am

3 Replies

2653 Views

Last post by MapleRidge
Fri Jan 11, 2019 4:36 am
Geomagnetic Activity Summary for 2018

Last post by Carbon60 « Wed Jan 02, 2019 7:39 pm
Replies: 7
by Carbon60 » Mon Dec 31, 2018 6:07 pm

7 Replies

3060 Views

Last post by Carbon60
Wed Jan 02, 2019 7:39 pm
Helium Disk: 08Aug2018 Spectroheliogram

Last post by LTHB « Mon Dec 24, 2018 11:59 pm
Replies: 14
by p_zetner » Sun Dec 16, 2018 8:59 pm

14 Replies

4941 Views

Last post by LTHB
Mon Dec 24, 2018 11:59 pm
magnetic fields

Last post by Merrill55 « Sun Dec 23, 2018 5:04 am
Replies: 7
by Merrill55 » Sat Dec 22, 2018 3:22 am

7 Replies

3269 Views

Last post by Merrill55
Sun Dec 23, 2018 5:04 am
08Aug Disk: Spectral sweep through H-alpha.

Last post by Valery « Thu Nov 22, 2018 9:04 am
Replies: 11
by p_zetner » Wed Aug 15, 2018 4:22 pm

11 Replies

5205 Views

Last post by Valery
Thu Nov 22, 2018 9:04 am
Minor Geomagnetic Storm 4th-5th Nov 2018

Last post by Carbon60 « Mon Nov 05, 2018 8:54 pm
Replies: 3
by Carbon60 » Mon Nov 05, 2018 7:10 am

3 Replies

2518 Views

Last post by Carbon60
Mon Nov 05, 2018 8:54 pm
For Science / Math Lovers: Measurement of a Solar Filament Temperature.

Last post by marktownley « Tue Oct 16, 2018 6:19 pm
Replies: 6
by p_zetner » Sat Oct 13, 2018 6:15 pm

6 Replies

4245 Views

Last post by marktownley
Tue Oct 16, 2018 6:19 pm
Weekend Geomagnetic Storm UPDATED 7th & 9th Oct. 18

Last post by Carbon60 « Tue Oct 09, 2018 10:04 am
Replies: 3
by Carbon60 » Mon Oct 08, 2018 5:59 am

3 Replies

2818 Views

Last post by Carbon60
Tue Oct 09, 2018 10:04 am
Weekend Geomagnetic Storm Sept 21st-23rd

Last post by Carbon60 « Tue Sep 25, 2018 5:27 am
Replies: 3
by Carbon60 » Sun Sep 23, 2018 7:03 pm

3 Replies

2556 Views

Last post by Carbon60
Tue Sep 25, 2018 5:27 am
G2 Geomagnetic Storm 11th Sept 2018

Last post by Carbon60 « Sun Sep 16, 2018 11:01 am
Replies: 5
by Carbon60 » Tue Sep 11, 2018 5:50 am

5 Replies

3019 Views

Last post by Carbon60
Sun Sep 16, 2018 11:01 am
08Aug: Spectral sweep through the Ca K line

Last post by p_zetner « Sat Sep 15, 2018 4:32 pm
Replies: 13
by p_zetner » Tue Aug 28, 2018 4:38 pm

13 Replies

5382 Views

Last post by p_zetner
Sat Sep 15, 2018 4:32 pm
G3 solar storm- Magnetometer response 25th-26th Aug 2018_Updated

Last post by carlosjackal « Wed Aug 29, 2018 4:45 pm
Replies: 10
by Carbon60 » Sun Aug 26, 2018 6:45 pm

10 Replies

3865 Views

Last post by carlosjackal
Wed Aug 29, 2018 4:45 pm
CME hit!

Last post by marktownley « Tue Aug 28, 2018 7:59 pm
Replies: 8
by carlosjackal » Sun Aug 26, 2018 10:21 am

8 Replies

3590 Views

Last post by marktownley
Tue Aug 28, 2018 7:59 pm
Further geomagnetic unrest

Last post by marktownley « Thu Aug 23, 2018 9:16 am
Replies: 3
by Carbon60 » Tue Aug 21, 2018 9:13 pm

3 Replies

2623 Views

Last post by marktownley
Thu Aug 23, 2018 9:16 am
08Aug Spectroheliograms

Last post by highfnum « Mon Aug 20, 2018 8:58 pm
Replies: 10
by p_zetner » Sun Aug 12, 2018 3:26 am

10 Replies

4137 Views

Last post by highfnum
Mon Aug 20, 2018 8:58 pm
Finally some magnetic activity Aug 16th 2018

Last post by Carbon60 « Mon Aug 20, 2018 11:07 am
Replies: 5
by Carbon60 » Thu Aug 16, 2018 9:48 am

5 Replies

3046 Views

Last post by Carbon60
Mon Aug 20, 2018 11:07 am
Even when there's little going on....

Last post by Montana « Wed Jul 18, 2018 9:35 am
Replies: 6
by Spectral Joe » Sun Jul 15, 2018 2:20 pm

6 Replies

3577 Views

Last post by Montana
Wed Jul 18, 2018 9:35 am
15 July Spectroheliograms

Last post by Montana « Wed Jul 18, 2018 9:29 am
Replies: 4
by p_zetner » Mon Jul 16, 2018 6:44 pm

4 Replies

3051 Views

Last post by Montana
Wed Jul 18, 2018 9:29 am
Recent Digital SHG

Last post by Montana « Wed Jul 18, 2018 9:27 am
Replies: 12
by Merrill55 » Sat Jul 14, 2018 5:53 am

12 Replies

4787 Views

Last post by Montana
Wed Jul 18, 2018 9:27 am
finally some solar action

Last post by highfnum « Thu Jul 12, 2018 6:17 pm
Replies: 16
by highfnum » Tue Jun 19, 2018 10:13 pm

16 Replies

5678 Views

Last post by highfnum
Thu Jul 12, 2018 6:17 pm
strong prom in Ha and even in Hb

Last post by marktownley « Wed Jul 11, 2018 4:48 am
Replies: 5
by highfnum » Mon Jul 02, 2018 11:54 pm

5 Replies

3360 Views

Last post by marktownley
Wed Jul 11, 2018 4:48 am
New product for magnetometer?

Last post by highfnum « Sun Jun 24, 2018 9:39 am
Replies: 3
by carlosjackal » Sat Jun 23, 2018 8:49 pm

3 Replies

2684 Views

Last post by highfnum
Sun Jun 24, 2018 9:39 am
Minor geomagnetic storm 18th June 2018

Last post by Carbon60 « Wed Jun 20, 2018 5:53 am
Replies: 4
by Carbon60 » Mon Jun 18, 2018 4:22 pm

4 Replies

2912 Views

Last post by Carbon60
Wed Jun 20, 2018 5:53 am
just a little fun

Last post by Montana « Tue Jun 19, 2018 9:06 am
Replies: 2
by highfnum » Mon Jun 18, 2018 11:22 pm

2 Replies

2516 Views

Last post by Montana
Tue Jun 19, 2018 9:06 am
Littrow SHG prototype

Last post by Merlin66 « Mon Jun 18, 2018 11:00 pm
Replies: 41
by Merlin66 » Sat Aug 06, 2016 12:26 am
1

2
41 Replies

13226 Views

Last post by Merlin66
Mon Jun 18, 2018 11:00 pm
awoke from long sleep

Last post by Carbon60 « Wed Jun 13, 2018 6:39 pm
Replies: 13
by highfnum » Sun Apr 22, 2018 7:44 pm

13 Replies

5726 Views

Last post by Carbon60
Wed Jun 13, 2018 6:39 pm
Solar wind continues to blow

Last post by marktownley « Mon May 14, 2018 6:35 am
Replies: 5
by Carbon60 » Thu May 10, 2018 7:16 pm

5 Replies

3476 Views

Last post by marktownley
Mon May 14, 2018 6:35 am

New Topic

730 topics

Return to Board Index

Forum permissions

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum