Search found 91 matches

by Fabio_Imm
Sat Feb 11, 2023 6:18 pm
Forum: This is SolarChat !!
Topic: Feb, 11 2023 - Sun in three wavelengths, so many active regions!
Replies: 6
Views: 207

Feb, 11 2023 - Sun in three wavelengths, so many active regions!

Hello, After a long hyatus (work & weather left little time for observations) I'm back to business! Finally a pleasant imaging session, seeing and transparency were good and the atmosphere was quite steady, then high clouds slowly came in. Our star is very active: I think I caught a glimpse of a...
by Fabio_Imm
Sun Sep 05, 2021 5:50 pm
Forum: This is SolarChat !!
Topic: Sep, 1 & 5 2021 - Sun in three lights, WOW so many Active regions!
Replies: 4
Views: 282

Sep, 1 & 5 2021 - Sun in three lights, WOW so many Active regions!

Hello, After holidays in a remote location, away from internet connections, I'm back to business! Finally a nice imaging session, seeing and transparency were good and the atmosphere was steady. What to say... wow, our star is very exciting these days! :hamster: Click for full resolution images. Ha ...
by Fabio_Imm
Sun Sep 05, 2021 5:29 pm
Forum: Solar Astronomy Shop and Swap
Topic: Solar Astronomy book now available
Replies: 62
Views: 27497

Re: Solar Astronomy book now available

:hamster:

Ordered my copy, can't wait to read it.

Fabio
by Fabio_Imm
Sun Jun 27, 2021 9:13 am
Forum: This is SolarChat !!
Topic: Jun, 27 2021 - Sun in WL & Ha (AR12835)
Replies: 4
Views: 341

Jun, 27 2021 - Sun in WL & Ha (AR12835)

Hello, Quick imaging session, started early in the morning to avoid the heat :cool: . Seeing and transparency were good. However cirrostrati rolled in forcing me to keep adjusting exposure and gain. AR12835 is a nice subject and it's constantly evolving. WL: https://live.staticflickr.com/65535/51273...
by Fabio_Imm
Sun Jun 13, 2021 6:52 am
Forum: This is SolarChat !!
Topic: SUNDAY 13-6-2021 NEW AR-SPOT AT N.E.LIMB
Replies: 9
Views: 359

Re: SUNDAY 13-6-2021 NEW AR-SPOT AT N.E.LIMB

Hi Terry,
Both websites can not be reached.

Fingers crossed

Fabio
by Fabio_Imm
Mon May 24, 2021 6:12 am
Forum: Solar Scope Modifications
Topic: PST Tuning Ring
Replies: 10
Views: 2720

Re: PST Tuning Ring

Hello Brian,
As a last resort, you might consider "fishing" the area with a strong magnet.

Fabio
by Fabio_Imm
Tue May 11, 2021 2:49 pm
Forum: This is SolarChat !!
Topic: Sun in three lights 11th May 2021
Replies: 14
Views: 487

Re: Sun in three lights 11th May 2021

Cracking images, Stu!
The delicate prominence is my favorite!

Fabio
by Fabio_Imm
Mon May 10, 2021 11:42 am
Forum: This is SolarChat !!
Topic: May, 09 2021 - Sun in three wavelenghts & AR12822
Replies: 12
Views: 430

Re: May, 09 2021 - Sun in three wavelenghts & AR12822

Thank you all for your kind comments

Clear skies

Fabio
by Fabio_Imm
Sun May 09, 2021 5:25 pm
Forum: This is SolarChat !!
Topic: May, 09 2021 - Sun in three wavelenghts & AR12822
Replies: 12
Views: 430

May, 09 2021 - Sun in three wavelenghts & AR12822

Hello, A bit of sunshine without strong gusts of wind, at least! Pleasant imaging session, seeing and transparency were "normal". Starting with Ca-k: https://live.staticflickr.com/65535/51167856496_4325738777_c.jpg cak__2021-05-09_T2 by Fabio Immovilli , su Flickr Time to move closer in WL...
by Fabio_Imm
Wed Apr 21, 2021 6:15 am
Forum: SPoD Archive
Topic: Solar Harvest 19th April 2021
Replies: 20
Views: 713

Re: Solar Harvest 19th April 2021

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

Fabio
by Fabio_Imm
Wed Apr 21, 2021 6:15 am
Forum: This is SolarChat !!
Topic: Solar Harvest 19th April 2021
Replies: 20
Views: 613

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: 855

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: 328

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: 544

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: 391

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: 17
Views: 573

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: 548

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: 371

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: 373

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: 470

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: 345

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: SPoD Archive
Topic: AR2804- AR2805, WL 23-02-2020
Replies: 9
Views: 608

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: This is SolarChat !!
Topic: AR2804- AR2805, WL 23-02-2020
Replies: 9
Views: 390

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: 345

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: 3177

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: SPoD Archive
Topic: Feb, 20 2021 - Sun in three lights
Replies: 3
Views: 363

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: This is SolarChat !!
Topic: Feb, 20 2021 - Sun in three lights
Replies: 6
Views: 243

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: 2149

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: 3177

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: 26
Views: 6111

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: 614

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: 303

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: 265

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...
by Fabio_Imm
Tue Jan 05, 2021 11:14 am
Forum: Forum Support Issues
Topic: Members please respond to this email question
Replies: 22
Views: 4500

Re: Members please respond to this email question

Hello,
I receive only e-mail notifications of new activity in bookmarked topics.
I do not receive e-mail notifications of DM/PM

It is consistent with the settings I set on the notification options tab, in my profile page

Fabio
by Fabio_Imm
Fri Jan 01, 2021 4:42 pm
Forum: This is SolarChat !!
Topic: Dec, 31 2020 - ARs in WL and Ha + Prominences
Replies: 15
Views: 544

Re: Dec, 31 2020 - ARs in WL and Ha + Prominences

Hi Mark, It seems that my unit likes to run "cool". Above +2 clicks clockwise it is basically "white light" equivalent: no detail at all. Both on the native SS60 as well as on the C80ED I achieve the best contrast between -3 to -5 clicks CCW. Unfortunately, as Alexandra said, the...
by Fabio_Imm
Fri Jan 01, 2021 4:23 pm
Forum: This is SolarChat !!
Topic: Dec, 31 2020 - ARs in WL and Ha + Prominences
Replies: 15
Views: 544

Re: Dec, 31 2020 - ARs in WL and Ha + Prominences

Very nice Fabio. It's the last white light image that catches my eyes the most. Happy New Year. Hi James, I totally agree with you: I am very pleased with the WL setup performance and "assembled" the optic & filter train on a 2" extension adapter for quick and easy swapping of th...
by Fabio_Imm
Fri Jan 01, 2021 2:29 pm
Forum: This is SolarChat !!
Topic: my first with solar scout ss60 + NEW !!! end of post
Replies: 23
Views: 793

Re: my first with solar scout ss60

Congratulations on your first light!
Really nice picture with good contrast, I like the look of the filament

Fabio
by Fabio_Imm
Thu Dec 31, 2020 5:52 pm
Forum: This is SolarChat !!
Topic: A Better and Happier New Year 2021
Replies: 11
Views: 388

Re: A Better and Happier New Year 2021

Cheers Rainer,

Happy New Year!

Fabio
by Fabio_Imm
Thu Dec 31, 2020 3:25 pm
Forum: This is SolarChat !!
Topic: SUN 30 December 2020 H-Alfa, Photosphere
Replies: 5
Views: 276

Re: SUN 30 December 2020 H-Alfa, Photosphere

Stunning images !
I love the filament's look: really three-dimensional :bow

Fabio
by Fabio_Imm
Thu Dec 31, 2020 2:35 pm
Forum: This is SolarChat !!
Topic: Dec, 31 2020 - ARs in WL and Ha + Prominences
Replies: 15
Views: 544

Dec, 31 2020 - ARs in WL and Ha + Prominences

Hello, A nice sunny day, freezing temperatures, clear sky and steady air. Ha full disk setup: Daystar SS60 + front iris (stopped down to 45mm) Basler acA1920-155um + unspecified 0.75x reducer https://live.staticflickr.com/65535/50783469122_05bd4782ce.jpg ha40prom__2020-12-31_T0 by Fabio Immovilli , ...
by Fabio_Imm
Mon Dec 28, 2020 5:08 pm
Forum: This is SolarChat !!
Topic: Dec, 27 2020 - AR 12794 and 12795 in WL and Ha
Replies: 5
Views: 262

Dec, 27 2020 - AR 12794 and 12795 in WL and Ha

Hello, Quick imaging session before a snow blizzard. Ha setup: Daystar SS60 + front iris (stopped down to 45mm) Basler acA1920-155um + unspecified 0.75x reducer I found an inexpensive 60mm iris on Aliexpress, 3d printed a fixture and experimented a bit: it seemed to me that the best contrast was obt...
by Fabio_Imm
Sun Dec 27, 2020 9:22 pm
Forum: This is SolarChat !!
Topic: Travelling Solar 27th December
Replies: 27
Views: 875

Re: Travelling Solar 27th December

Hi Mark,
Lovely full disk images! :hamster:
How is the life onboard a narrowboat?
I have seen plenty of them when I stayed in Nottingham, but never had the opportunity to experience a journey on a waterway.

Cheers

Fabio
by Fabio_Imm
Thu Dec 17, 2020 6:45 am
Forum: This is SolarChat !!
Topic: Full disk 16-12-2020
Replies: 10
Views: 465

Re: Full disk 16-12-2020

Stunning full disk images Rainer!

Fabio
by Fabio_Imm
Mon Dec 14, 2020 2:23 pm
Forum: This is SolarChat !!
Topic: December 13 2020 - AR2792 emerging
Replies: 9
Views: 464

Re: December 13 2020 - AR2792 emerging

Hi Fabio, Nice capture of 2792. I could not help asking what scope did you use? Alfred Hi Alfred, I forgot to add the setup, here is the list: Scope: TS 102/1100 achro WL photographic setup , absolutely not eye safe : 2" UV/IR cut + 2" Baader solar continuum (on 80mm extension tubes) + un...
by Fabio_Imm
Sun Dec 13, 2020 5:13 pm
Forum: This is SolarChat !!
Topic: December 13 2020 - AR2792 emerging
Replies: 9
Views: 464

December 13 2020 - AR2792 emerging

Hello, After ten days of snow and rain, finally a bit of sunshine. :hamster: The solar disk is now really low and I have a short observation window before it disappears behind tall buildings. The surface was rather bland, just took a few images in WL of AR2792 emerging, then the seeing quickly deter...
by Fabio_Imm
Sat Dec 12, 2020 9:30 am
Forum: Commercial Solar Filters/Cameras/Hardware
Topic: Adventures in buying a Ca-K filter
Replies: 13
Views: 1836

Re: Adventures in buying a Ca-K filter

I don't know what to think on this. I have always heard Lunt Solar Systems praised for their customer service and " making it right " if something is wrong in delivery or fails for any reason. I myself would prefer ordering a scope directly from Lunt but in Europe that may not be possible...
by Fabio_Imm
Sat Dec 12, 2020 8:29 am
Forum: Commercial Solar Filters/Cameras/Hardware
Topic: Adventures in buying a Ca-K filter
Replies: 13
Views: 1836

Re: Adventures in buying a Ca-K filter

Poor quality control and variance in performance sadly seems all too common in the world of solar filters and etalons... Mark, that is exacly my line! This is the second wrong replacement unit that I received, packaged in the factory box. 1.PNG Do not misunderstand me, the mechanical build quality ...
by Fabio_Imm
Sat Dec 05, 2020 5:30 pm
Forum: Commercial Solar Filters/Cameras/Hardware
Topic: New flats from DayStar Filters!
Replies: 22
Views: 2215

Re: New flats from DayStar Filters!

Hi, Long time ago I build a Flatmaker using and embroidery ring and paper and then for my Mewlon 250 I went to a company which cuts with Laser. So I spend 12000 bucks for a QUANTUM PE 0.4Å and then I need a Flatmaker :lol: :lol: :lol: :lol: Hi Rainer, The embroidery ring is brilliant! :bow Now that...