Solar Reference Library

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Possibly one of the last active regions of cycle 24? AR12757 ends january with decent activity for solar minimum. Taken by Marty Wise with his 8" SCT, Aries ERF and PST mod.

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Moving forward from solar cycle 24 to 25

Solar Reference Library

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HR solar spectra

Last post by marktownley « Thu Jan 23, 2020 6:23 am
Replies: 3
by christian viladrich » Tue Jan 21, 2020 8:40 pm

3 Replies

142 Views

Last post by marktownley
Thu Jan 23, 2020 6:23 am
Hi Res Solar Spectrum Resource

Last post by marktownley « Sun Jan 19, 2020 9:42 am
Replies: 1
by Carbon60 » Sun Jan 19, 2020 9:32 am

1 Replies

95 Views

Last post by marktownley
Sun Jan 19, 2020 9:42 am
Free Online Access to Astronomy Magazines

Last post by skyhawk « Tue Apr 02, 2019 2:37 pm
Replies: 5
by skyhawk » Tue Apr 02, 2019 10:23 am

5 Replies

2866 Views

Last post by skyhawk
Tue Apr 02, 2019 2:37 pm
A few free LEGALLY magazines

Last post by marktownley « Sun Mar 31, 2019 7:27 am
Replies: 4
by skyhawk » Tue Mar 26, 2019 1:25 pm

4 Replies

628 Views

Last post by marktownley
Sun Mar 31, 2019 7:27 am
Solar images restoration.

Last post by Valery « Tue Mar 19, 2019 1:46 pm
Replies: 5
by Valery » Sat Mar 16, 2019 2:36 pm

5 Replies

730 Views

Last post by Valery
Tue Mar 19, 2019 1:46 pm
For Daystar CaH quark owners

Last post by marktownley « Sun Oct 07, 2018 1:15 pm
Replies: 4
by marktownley » Thu Oct 04, 2018 4:51 pm

4 Replies

3056 Views

Last post by marktownley
Sun Oct 07, 2018 1:15 pm
Spicules

Last post by marktownley « Thu Oct 04, 2018 4:56 pm
Replies: 1
by krakatoa1883 » Thu Oct 04, 2018 8:01 am

1 Replies

713 Views

Last post by marktownley
Thu Oct 04, 2018 4:56 pm
Surface contrast in CaK for various filter bandpasses.

Last post by Derek Klepp « Tue Sep 25, 2018 8:37 am
Replies: 16
by p_zetner » Fri Sep 14, 2018 8:14 pm

16 Replies

2279 Views

Last post by Derek Klepp
Tue Sep 25, 2018 8:37 am
PST Mod (PDF file)

Last post by pedro « Thu Sep 20, 2018 5:05 pm
Replies: 3
by pedro » Tue Sep 11, 2018 4:08 pm

3 Replies

1179 Views

Last post by pedro
Thu Sep 20, 2018 5:05 pm
Adapters

Last post by marktownley « Sun Aug 06, 2017 5:04 pm
Replies: 3
by gabrieli » Wed Aug 02, 2017 11:30 am

3 Replies

1286 Views

Last post by marktownley
Sun Aug 06, 2017 5:04 pm
Solar Imaging Tutorial: Data Acquisition, Alignment & Processing in Hydrogen Alpha (V1.0)

Last post by MalVeauX « Tue May 09, 2017 8:04 pm

by MalVeauX » Tue May 09, 2017 8:04 pm

0 Replies

1928 Views

Last post by MalVeauX
Tue May 09, 2017 8:04 pm
Article on digital SHG

Last post by Merlin66 « Mon Apr 03, 2017 6:01 am

by Merlin66 » Mon Apr 03, 2017 6:01 am

0 Replies

1473 Views

Last post by Merlin66
Mon Apr 03, 2017 6:01 am
A Review of Solutions to Newtons Rings For Solar Imaging

Last post by marktownley « Sun Nov 06, 2016 6:38 pm

by marktownley » Sun Nov 06, 2016 6:38 pm

0 Replies

1536 Views

Last post by marktownley
Sun Nov 06, 2016 6:38 pm
Magnetometer Tutorial

Last post by grimble_cornet « Sat Jul 30, 2016 2:03 pm
Replies: 7
by marktownley » Wed Jul 13, 2016 5:30 am

7 Replies

2474 Views

Last post by grimble_cornet
Sat Jul 30, 2016 2:03 pm
interesting .ppt presentation

Last post by Derek Klepp « Sun Apr 03, 2016 9:40 am
Replies: 2
by DSobserver » Sat Apr 02, 2016 1:48 pm

2 Replies

2189 Views

Last post by Derek Klepp
Sun Apr 03, 2016 9:40 am
DIY Remote focusing devices

Last post by 04Stefan07 « Wed Jan 20, 2016 3:40 am
Replies: 4
by [whrudey] » Mon Jan 04, 2016 7:08 pm

4 Replies

2557 Views

Last post by 04Stefan07
Wed Jan 20, 2016 3:40 am
A useful article

Last post by marktownley « Thu Oct 08, 2015 4:37 pm
Replies: 1
by Bob Yoesle » Thu Oct 08, 2015 4:29 pm

1 Replies

1747 Views

Last post by marktownley
Thu Oct 08, 2015 4:37 pm
How to combine a surface image with a prom image

Last post by solarchat « Tue Nov 18, 2014 12:51 pm
Replies: 10
by TILLIBOBS » Mon Nov 17, 2014 8:49 pm

10 Replies

14974 Views

Last post by solarchat
Tue Nov 18, 2014 12:51 pm
Quickie Sun Piccy in Ha - Teds Processing Routine

Last post by edobosz « Tue Jul 29, 2014 4:04 am
Replies: 14
by edobosz » Sun Jul 27, 2014 2:19 pm

14 Replies

3784 Views

Last post by edobosz
Tue Jul 29, 2014 4:04 am
Threads on Solarmax 60 mm External Etalon

Last post by marktownley « Fri Jun 20, 2014 9:05 pm
Replies: 11
by kornfeld1 » Tue Jul 03, 2012 2:52 am

11 Replies

3041 Views

Last post by marktownley
Fri Jun 20, 2014 9:05 pm
Solar animation automatic alignment tool - imgalt

Last post by marktownley « Thu May 22, 2014 6:50 pm
Replies: 23
by GreatAttractor » Sat Apr 26, 2014 4:10 pm

23 Replies

6985 Views

Last post by marktownley
Thu May 22, 2014 6:50 pm
Field of View Calculator

Last post by marktownley « Sun May 11, 2014 7:49 am
Replies: 5
by marktownley » Sat May 10, 2014 9:36 pm

5 Replies

2355 Views

Last post by marktownley
Sun May 11, 2014 7:49 am
Hardware:Thoughts on the Grasshopper 3

Last post by solarchat « Tue Mar 04, 2014 2:55 pm
Replies: 51
by JimLafferty » Mon Aug 05, 2013 4:01 am
1

2

3
51 Replies

13993 Views

Last post by solarchat
Tue Mar 04, 2014 2:55 pm
How to build a magnetometer- Tutorial

Last post by Carbon60 « Sat Feb 15, 2014 7:35 am

by Carbon60 » Sat Feb 15, 2014 7:35 am

0 Replies

2140 Views

Last post by Carbon60
Sat Feb 15, 2014 7:35 am
Tutorial: SHG imaging & processing

Last post by Wah « Tue Jan 28, 2014 3:37 pm

by Wah » Tue Jan 28, 2014 3:37 pm

0 Replies

2295 Views

Last post by Wah
Tue Jan 28, 2014 3:37 pm
Tutorial: Colour Imaging using Curves Function

Last post by Carbon60 « Mon Dec 30, 2013 9:16 am

by Carbon60 » Mon Dec 30, 2013 9:16 am

0 Replies

2084 Views

Last post by Carbon60
Mon Dec 30, 2013 9:16 am
Tutorial: Solar Image Processing - Ralph Smith

Last post by Merlin66 « Mon Nov 18, 2013 5:17 am

by Merlin66 » Mon Nov 18, 2013 5:17 am

0 Replies

17704 Views

Last post by Merlin66
Mon Nov 18, 2013 5:17 am
Tutorial: Impressive Relief effect Full-HD

Last post by gabrieli « Mon Aug 26, 2013 7:47 pm
Replies: 4
by colmic » Sun Aug 25, 2013 5:40 pm

4 Replies

2504 Views

Last post by gabrieli
Mon Aug 26, 2013 7:47 pm
TUTORIAL: from Video Recording to Final Processing of my mosaics...

Last post by gabrieli « Sat Aug 24, 2013 11:02 am
Replies: 4
by colmic » Fri Aug 23, 2013 11:20 pm

4 Replies

3129 Views

Last post by gabrieli
Sat Aug 24, 2013 11:02 am
Tutorial: One Shots, Shadows, Highlights and Sharpening (PS)

Last post by marktownley « Fri Aug 23, 2013 7:40 pm

by marktownley » Fri Aug 23, 2013 7:40 pm

0 Replies

2139 Views

Last post by marktownley
Fri Aug 23, 2013 7:40 pm
Software: Using IC Capture Video Tutorial

Last post by marktownley « Fri Aug 23, 2013 1:55 pm

by marktownley » Fri Aug 23, 2013 1:55 pm

0 Replies

4087 Views

Last post by marktownley
Fri Aug 23, 2013 1:55 pm
Software: PGRs and Firecapture Working Together

Last post by RobBower « Sun Aug 18, 2013 12:41 am
Replies: 11
by sullij1 » Mon Aug 12, 2013 3:40 am

11 Replies

2639 Views

Last post by RobBower
Sun Aug 18, 2013 12:41 am
Tutorial: Solar Animation Video

Last post by marktownley « Sun Dec 23, 2012 1:52 pm

by marktownley » Sun Dec 23, 2012 1:52 pm

0 Replies

1890 Views

Last post by marktownley
Sun Dec 23, 2012 1:52 pm
Tutorial: GIF Animation Video

Last post by marktownley « Thu Dec 20, 2012 7:33 am

by marktownley » Thu Dec 20, 2012 7:33 am

0 Replies

1786 Views

Last post by marktownley
Thu Dec 20, 2012 7:33 am
Equipment Suppliers - Achromatic Lenses

Last post by Merlin66 « Thu Sep 06, 2012 10:41 pm

by Merlin66 » Thu Sep 06, 2012 10:41 pm

0 Replies

1771 Views

Last post by Merlin66
Thu Sep 06, 2012 10:41 pm
Technical - ERF and Solar observing safety Review

Last post by Merlin66 « Mon Jun 11, 2012 8:23 am

by Merlin66 » Mon Jun 11, 2012 8:23 am

0 Replies

1595 Views

Last post by Merlin66
Mon Jun 11, 2012 8:23 am
Technical: Coronado/ Lunt - PST Patents

Last post by Merlin66 « Mon Jun 11, 2012 8:17 am
Replies: 1
by Merlin66 » Sun Jun 10, 2012 3:35 pm

1 Replies

1485 Views

Last post by Merlin66
Mon Jun 11, 2012 8:17 am
Technical: SM60 etalon (Doppler) review - Aristidis V.

Last post by Merlin66 « Mon Apr 30, 2012 3:23 pm

by Merlin66 » Mon Apr 30, 2012 3:23 pm

0 Replies

1427 Views

Last post by Merlin66
Mon Apr 30, 2012 3:23 pm
Tutorial: Pseudo-HDR processing

Last post by Merlin66 « Sat Apr 21, 2012 1:37 pm

by Merlin66 » Sat Apr 21, 2012 1:37 pm

0 Replies

1347 Views

Last post by Merlin66
Sat Apr 21, 2012 1:37 pm
Tutorial: Processing Prominence Images (Cai-Uso)

Last post by Merlin66 « Wed Apr 18, 2012 12:56 pm

by Merlin66 » Wed Apr 18, 2012 12:56 pm

0 Replies

1822 Views

Last post by Merlin66
Wed Apr 18, 2012 12:56 pm
Tutorial: YouTube - Full Disk processing (Mark)

Last post by Merlin66 « Wed Apr 18, 2012 12:43 pm

by Merlin66 » Wed Apr 18, 2012 12:43 pm

0 Replies

1372 Views

Last post by Merlin66
Wed Apr 18, 2012 12:43 pm
Tutorial: Flat fielding with Autostakkert2 (Chris)

Last post by Merlin66 « Wed Apr 18, 2012 12:38 pm

by Merlin66 » Wed Apr 18, 2012 12:38 pm

0 Replies

1407 Views

Last post by Merlin66
Wed Apr 18, 2012 12:38 pm
Tutorial: YouTube- Scaling the Earth for Solar Images #1/#2/#3 (Earl)

Last post by Merlin66 « Wed Apr 18, 2012 12:35 pm

by Merlin66 » Wed Apr 18, 2012 12:35 pm

0 Replies

1246 Views

Last post by Merlin66
Wed Apr 18, 2012 12:35 pm
Tutorial: Batch Processing Avi's under Autostakkert2 (Chris)

Last post by Merlin66 « Wed Apr 18, 2012 12:31 pm

by Merlin66 » Wed Apr 18, 2012 12:31 pm

0 Replies

1741 Views

Last post by Merlin66
Wed Apr 18, 2012 12:31 pm
Tutorial: Flat Frames # 1

Last post by Merlin66 « Wed Apr 18, 2012 12:27 pm

by Merlin66 » Wed Apr 18, 2012 12:27 pm

0 Replies

1406 Views

Last post by Merlin66
Wed Apr 18, 2012 12:27 pm
Tutorial: Visual Guide to Photosphere and Cromosphere featur

Last post by Merlin66 « Tue Apr 17, 2012 9:55 am

by Merlin66 » Tue Apr 17, 2012 9:55 am

0 Replies

1391 Views

Last post by Merlin66
Tue Apr 17, 2012 9:55 am
Technical: Reducing reflections in the optical train

Last post by Merlin66 « Tue Apr 17, 2012 9:48 am

by Merlin66 » Tue Apr 17, 2012 9:48 am

0 Replies

1119 Views

Last post by Merlin66
Tue Apr 17, 2012 9:48 am
Software: Registax- AVIstack -AS!2 Comparison (Pedro)

Last post by Merlin66 « Tue Apr 17, 2012 9:26 am

by Merlin66 » Tue Apr 17, 2012 9:26 am

0 Replies

1121 Views

Last post by Merlin66
Tue Apr 17, 2012 9:26 am
Tutorial: Full Disk Flattening -PS (Chris S.)

Last post by Merlin66 « Tue Apr 17, 2012 9:08 am

by Merlin66 » Tue Apr 17, 2012 9:08 am

0 Replies

1338 Views

Last post by Merlin66
Tue Apr 17, 2012 9:08 am
Technical: Using Aperture masks

Last post by Merlin66 « Tue Apr 17, 2012 8:50 am

by Merlin66 » Tue Apr 17, 2012 8:50 am

0 Replies

1278 Views

Last post by Merlin66
Tue Apr 17, 2012 8:50 am
Tutorial: Adding Colour to Solar Images

Last post by Merlin66 « Tue Apr 17, 2012 8:43 am

by Merlin66 » Tue Apr 17, 2012 8:43 am

0 Replies

1505 Views

Last post by Merlin66
Tue Apr 17, 2012 8:43 am
Technical - Filter transmission curves

Last post by Merlin66 « Thu Mar 22, 2012 1:40 pm
Replies: 3
by Merlin66 » Thu Mar 22, 2012 1:33 pm

3 Replies

1440 Views

Last post by Merlin66
Thu Mar 22, 2012 1:40 pm
Tutorials: Miscellaneous collection

Last post by Merlin66 « Thu Mar 22, 2012 1:14 pm
Replies: 2
by Montana » Tue Feb 21, 2012 1:11 pm

2 Replies

1540 Views

Last post by Merlin66
Thu Mar 22, 2012 1:14 pm
Technical - Fitting Imaging Source cameras to Lunt systems

Last post by Merlin66 « Thu Mar 22, 2012 10:30 am

by Merlin66 » Thu Mar 22, 2012 10:30 am

0 Replies

1331 Views

Last post by Merlin66
Thu Mar 22, 2012 10:30 am
Tutorial - AS!2 (Dennis Put)

Last post by Merlin66 « Wed Mar 21, 2012 2:35 pm

by Merlin66 » Wed Mar 21, 2012 2:35 pm

0 Replies

1438 Views

Last post by Merlin66
Wed Mar 21, 2012 2:35 pm
Tutorial: Pedro's Hi Res Ha

Last post by Merlin66 « Wed Mar 21, 2012 2:02 pm

by Merlin66 » Wed Mar 21, 2012 2:02 pm

0 Replies

1406 Views

Last post by Merlin66
Wed Mar 21, 2012 2:02 pm
Tutorial - Registax 6

Last post by Merlin66 « Wed Mar 21, 2012 12:01 pm

by Merlin66 » Wed Mar 21, 2012 12:01 pm

0 Replies

1350 Views

Last post by Merlin66
Wed Mar 21, 2012 12:01 pm
Solar Equipment Suppliers

Last post by Merlin66 « Tue Mar 20, 2012 5:07 pm

by Merlin66 » Tue Mar 20, 2012 5:07 pm

0 Replies

1416 Views

Last post by Merlin66
Tue Mar 20, 2012 5:07 pm
Recommended Reading

Last post by Merlin66 « Thu Feb 23, 2012 3:56 pm

by Merlin66 » Thu Feb 23, 2012 3:56 pm

0 Replies

1904 Views

Last post by Merlin66
Thu Feb 23, 2012 3:56 pm
Tutorial - Autostakkert2

Last post by Merlin66 « Thu Feb 23, 2012 8:27 am

by Merlin66 » Thu Feb 23, 2012 8:27 am

0 Replies

1400 Views

Last post by Merlin66
Thu Feb 23, 2012 8:27 am
Software: Solar Imaging software

Last post by Merlin66 « Thu Feb 23, 2012 8:19 am

by Merlin66 » Thu Feb 23, 2012 8:19 am

0 Replies

1551 Views

Last post by Merlin66
Thu Feb 23, 2012 8:19 am
Daystar filters, etreme narrow band solar observing

Last post by oldfrankland « Tue Feb 21, 2012 8:49 pm

by oldfrankland » Tue Feb 21, 2012 8:49 pm

0 Replies

1319 Views

Last post by oldfrankland
Tue Feb 21, 2012 8:49 pm
Hydrogen alpha features

Last post by solarchat « Tue Feb 21, 2012 2:05 pm
Replies: 1
by Montana » Tue Feb 21, 2012 1:12 pm

1 Replies

1520 Views

Last post by solarchat
Tue Feb 21, 2012 2:05 pm
Solar data and grid overlays

Last post by Merlin66 « Tue Feb 21, 2012 1:47 pm

by Merlin66 » Tue Feb 21, 2012 1:47 pm

0 Replies

1434 Views

Last post by Merlin66
Tue Feb 21, 2012 1:47 pm
White Light features

Last post by Montana « Tue Feb 21, 2012 1:13 pm

by Montana » Tue Feb 21, 2012 1:13 pm

0 Replies

1338 Views

Last post by Montana
Tue Feb 21, 2012 1:13 pm
Calcium II K features

Last post by Montana « Tue Feb 21, 2012 1:07 pm

by Montana » Tue Feb 21, 2012 1:07 pm

0 Replies

1384 Views

Last post by Montana
Tue Feb 21, 2012 1:07 pm

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