Search found 81 matches

by Fabio_Imm
Wed Apr 21, 2021 6:15 am
Forum: This is SolarChat !!
Topic: Solar Harvest 19th April 2021
Replies: 16
Views: 139

Re: Solar Harvest 19th April 2021

Excellent shots, Stu!
The filaprom and WL close-ups are lovely

Fabio
by Fabio_Imm
Tue Mar 30, 2021 12:19 pm
Forum: This is SolarChat !!
Topic: Megaprom on the NW edge ... NOW !!!
Replies: 26
Views: 339

Re: Megaprom on the NW edge ... NOW !!!

Stunning image, Jozef!

Busy at work here -_-

Fabio
by Fabio_Imm
Sun Mar 21, 2021 4:18 pm
Forum: This is SolarChat !!
Topic: Mar, 21 2021 - Sun Ha AR2811
Replies: 7
Views: 120

Mar, 21 2021 - Sun Ha AR2811

Hello, After the temperature drop, this morning the sky was really clear, however a strong breeze soon picked up. Quick imaging session of the newly formed AR showing at the East limb. https://live.staticflickr.com/65535/51058668033_f2862b0399_c.jpg ha__2021-03-21_T2 by Fabio Immovilli , su Flickr F...
by Fabio_Imm
Fri Mar 05, 2021 6:53 pm
Forum: Solar Radio, Magnetometry and Spectroscopy
Topic: H spectrum tube first light
Replies: 1
Views: 81

H spectrum tube first light

Hello, Today I received the H spectrum tubes ordered on Ebay. Lacking the dedicated power supply, I am experimenting with some CCFL supply modules that I had laying around. CCFL_PS.PNG So far they seem to work fine: the discharge is stable and nothing is overheating (duty cycle 20 seconds ON, one mi...
by Fabio_Imm
Sat Feb 27, 2021 5:51 pm
Forum: This is SolarChat !!
Topic: LUNT LS80MT with 100mm OTA Addon
Replies: 7
Views: 154

Re: LUNT LS80MT with 100mm OTA Addon

Sorry to butt in,
I believe that such a generic name might be misleading ;)
In this context Solar Spectrum is a manufacturer's name

https://solarspectrumopticalfilters.com/

They produce solid etalons.

Clear skies

Fabio
by Fabio_Imm
Sat Feb 27, 2021 4:36 pm
Forum: This is SolarChat !!
Topic: Solar observation with two old (XIX/early XX century) refractors
Replies: 18
Views: 238

Re: Solar observation with two old (XIX/early XX century) refractors

Thanks for sharing, Pedro
Love all that brass :hamster:

Fabio
by Fabio_Imm
Fri Feb 26, 2021 6:48 pm
Forum: This is SolarChat !!
Topic: Experimental big gun today
Replies: 17
Views: 265

Re: Experimental big gun today

Looking good!
No barlow can beat a long native focal length.

CS
Fabio
by Fabio_Imm
Fri Feb 26, 2021 8:24 am
Forum: This is SolarChat !!
Topic: h-alpha and CaK, February 24th, 2021
Replies: 11
Views: 129

Re: h-alpha and CaK, February 24th, 2021

Frank,
Stunning images :bow

The Ca-k prom is magnificent!

Fabio
by Fabio_Imm
Thu Feb 25, 2021 5:30 pm
Forum: This is SolarChat !!
Topic: Feb, 25 2021 - Full disks and AR2804
Replies: 7
Views: 121

Feb, 25 2021 - Full disks and AR2804

Hello, Lunch time imaging session, seeing was quite bad. Starting with Full disk in Ha https://live.staticflickr.com/65535/50978901278_d1ec1b615e_c.jpg ha__2021-02-25_T3_stitch by Fabio Immovilli , su Flickr And in Ca-k https://live.staticflickr.com/65535/50979604251_169aba8f1a_c.jpg cak__2021-02-25...
by Fabio_Imm
Wed Feb 24, 2021 5:31 pm
Forum: This is SolarChat !!
Topic: Magnetically disturbed solar region 22nd Feb '21
Replies: 12
Views: 196

Re: Magnetically disturbed solar region 22nd Feb '21

Hi Stu,
Very nice detailed view, I really enjoy the fluffiness !

Fabio
by Fabio_Imm
Tue Feb 23, 2021 3:17 pm
Forum: This is SolarChat !!
Topic: Feb, 23 2021 - Sun in WL and Ca-k (AR2804 & AR2805)
Replies: 7
Views: 148

Re: Feb, 23 2021 - Sun in WL and Ca-k (AR2804 & AR2805)

Hello, Finished processing another set of close-up in WL, obtained with a 5X barlow That was a bit of a stretch, since they didn't end up very crisp. https://live.staticflickr.com/65535/50973238567_92a0f8237e_c.jpg WL5x__2021-02-23_T6 by Fabio Immovilli , su Flickr https://live.staticflickr.com/6553...
by Fabio_Imm
Tue Feb 23, 2021 12:32 pm
Forum: This is SolarChat !!
Topic: AR2804- AR2805, WL 23-02-2020
Replies: 9
Views: 153

Re: AR2804- AR2805, WL 23-02-2020

Beautiful captures Martin, really sharp!
:bow


Fabio
by Fabio_Imm
Tue Feb 23, 2021 12:32 pm
Forum: SPoD Archive
Topic: AR2804- AR2805, WL 23-02-2020
Replies: 9
Views: 138

Re: AR2804- AR2805, WL 23-02-2020

Beautiful captures Martin, really sharp!
:bow


Fabio
by Fabio_Imm
Tue Feb 23, 2021 12:05 pm
Forum: This is SolarChat !!
Topic: Feb, 23 2021 - Sun in WL and Ca-k (AR2804 & AR2805)
Replies: 7
Views: 148

Feb, 23 2021 - Sun in WL and Ca-k (AR2804 & AR2805)

Hello, Given the newly formed sunspots, I scheduled a really quick imaging session (no time for H-alpha). Very calm atmosphere but transparency wasn't exceptional. During the last Zoom meeting I took notes ;) and this time I tried to apply some of the acquisition advices discussed. Ca-k Full disk ht...
by Fabio_Imm
Sun Feb 21, 2021 8:17 pm
Forum: This is SolarChat !!
Topic: Zoom Meeting - 21 February @ 18:00 UT
Replies: 74
Views: 1571

Re: Zoom Meeting - 21 February @ 18:00 UT

Thanks to Alexandra and Brian for organizing this meeting.
It was nice to interact "live" with some of the most experienced users and, at least for me, a great learning opportunity!

Cheers
Fabio
by Fabio_Imm
Sat Feb 20, 2021 2:11 pm
Forum: This is SolarChat !!
Topic: Feb, 20 2021 - Sun in three lights
Replies: 6
Views: 97

Feb, 20 2021 - Sun in three lights

Hello, Pleasant imaging session: today the transparency wasn't exceptional, but the air was really still. Had a look at all the wavelenghts, starting with white light of the emerging AR: https://live.staticflickr.com/65535/50962418981_60678f8573_c.jpg wl__2021-02-20_T1 by Fabio Immovilli , su Flickr...
by Fabio_Imm
Sat Feb 20, 2021 2:11 pm
Forum: SPoD Archive
Topic: Feb, 20 2021 - Sun in three lights
Replies: 3
Views: 36

Feb, 20 2021 - Sun in three lights

Hello, Pleasant imaging session: today the transparency wasn't exceptional, but the air was really still. Had a look at all the wavelenghts, starting with white light of the emerging AR: https://live.staticflickr.com/65535/50962418981_60678f8573_c.jpg wl__2021-02-20_T1 by Fabio Immovilli , su Flickr...
by Fabio_Imm
Thu Feb 18, 2021 2:12 pm
Forum: Solar Scope Modifications
Topic: solarscout DS60 open heart operation
Replies: 3
Views: 147

Re: solarscout DS60 open heart operation

Hi Paul, I understand your frustration: the retention groove and the tapered end are bothersome. Excellent work in finding a viable solution with the materials at hand :idea: In my case I fabricated an adapter using a 60mm 2" extension tube connected to the etalon by means of a "clamshell&...
by Fabio_Imm
Fri Feb 12, 2021 4:55 pm
Forum: This is SolarChat !!
Topic: Zoom Meeting - 21 February @ 18:00 UT
Replies: 74
Views: 1571

Re: Interest in a Zoom Meeting?

I couldn't make it for the last one.
Count me in for this one!

Cheers

Fabio
by Fabio_Imm
Sat Jan 30, 2021 5:57 pm
Forum: Solar Scope Modifications
Topic: Advices needed on doublestacking Daystar Quark Chrom and PST Etalon
Replies: 24
Views: 681

Re: Advices needed on doublestacking Daystar Quark Chrom and PST Etalon

I can confirm,
I get the same artifacts with my Basler acA1920 (IMX 174 sensor): Newton Rings and horizontal striping in my case.
They both disappear with tilting.

Cheers

Fabio
by Fabio_Imm
Sun Jan 17, 2021 10:20 am
Forum: This is SolarChat !!
Topic: Saturdays Suckers Gap Sunshine 16th January
Replies: 19
Views: 290

Re: Saturdays Suckers Gap Sunshine 16th January

Well done Mark,
Beautiful southern hemisphere.

I know the "race against time" feeling :)

CS
Fabio
by Fabio_Imm
Sat Jan 16, 2021 3:30 pm
Forum: This is SolarChat !!
Topic: Jan, 16 2021 - AR2796 in Ca-k and WL
Replies: 7
Views: 132

Jan, 16 2021 - AR2796 in Ca-k and WL

Hello, Afternoon imaging session, right before a new perturbation coming in :( . Clear sky, chilly dry air and no breeze, but awful seeing: looking for the right moment to start the acquisitions, to try catching a pause in the boiling atmosphere. Ca-k setup: C80ED + Lunt Ca-k module 1800 Basler acA1...
by Fabio_Imm
Thu Jan 14, 2021 5:37 pm
Forum: This is SolarChat !!
Topic: Jan, 14 2021 - Ca-k first light
Replies: 5
Views: 132

Jan, 14 2021 - Ca-k first light

Hello, Really quick imaging session at noon (remote working from home has its advantages). Nothing spectacular and not much to see, I just couldn't wait to try out the lunt Ca-k module ;) . Ca-k full disk setup: C80ED + Lunt Ca-k module 1800 Basler acA1920-155um https://live.staticflickr.com/65535/5...