Search found 1041 matches

by krakatoa1883
Fri Nov 05, 2021 10:34 am
Forum: This is SolarChat !!
Topic: October 31, 2021 Sun in Lunt50 mod
Replies: 12
Views: 503

Re: October 31, 2021 Sun in Lunt50 mod

Great images, Ivan, disc is particularly beautiful.
by krakatoa1883
Sat Sep 11, 2021 4:15 pm
Forum: This is SolarChat !!
Topic: September 11 2021 Observations. Big NE Prominence!
Replies: 13
Views: 625

Re: September 11 2021 Observations. Big NE Prominence!

Incredible prom, I missed it unfortunately. Thanks for sharing, James.
by krakatoa1883
Sat Sep 11, 2021 4:13 pm
Forum: This is SolarChat !!
Topic: sunspots with quark Mg
Replies: 7
Views: 361

Re: sunspots with quark Mg

Never tried this Quark, thanks for sharing.
by krakatoa1883
Mon Aug 30, 2021 4:31 pm
Forum: This is SolarChat !!
Topic: Solar activity of Aug 29
Replies: 12
Views: 518

Re: Solar activity of Aug 29

Thanks for your comments.

There have been several flares today too while an active region is becoming visible at NE, this afternoon I could see an eruptive prom projecting from the limb.
by krakatoa1883
Sun Aug 29, 2021 4:05 pm
Forum: This is SolarChat !!
Topic: Today's SUN (20120828) | AR12860 + BIG Prom
Replies: 7
Views: 842

Re: Today's SUN (20120828) | AR12860 + BIG Prom

A great set of images, Pedro!
by krakatoa1883
Sun Aug 29, 2021 4:04 pm
Forum: This is SolarChat !!
Topic: AR12860 Mid-Flare 28th Aug 2021_RCT
Replies: 23
Views: 863

Re: AR12860 Mid-Flare 28th Aug 2021_RCT

Great image, Stu, impressive detail. Always very difficult not to burn the flare area.
by krakatoa1883
Sun Aug 29, 2021 4:02 pm
Forum: SPoD Archive
Topic: Solar activity of Aug 29
Replies: 6
Views: 416

Solar activity of Aug 29

AR12860 still dominates the disc, if I am not wrong is the most active group of cycle 25 that appeared so far. Flaring activity is frequent and worth of continuous monitoring. I have taken few images during this morning, three discs and a sudden flare that gave rise to a very bright spot in a matter...
by krakatoa1883
Sun Aug 29, 2021 4:02 pm
Forum: This is SolarChat !!
Topic: Solar activity of Aug 29
Replies: 12
Views: 518

Solar activity of Aug 29

AR12860 still dominates the disc, if I am not wrong is the most active group of cycle 25 that appeared so far. Flaring activity is frequent and worth of continuous monitoring. I have taken few images during this morning, three discs and a sudden flare that gave rise to a very bright spot in a matter...
by krakatoa1883
Sat Aug 28, 2021 4:36 pm
Forum: Solar Scope Modifications
Topic: Lunt 50 mod with f/7 and f/11 refractors
Replies: 15
Views: 4743

Re: Lunt 50 mod with f/7 and f/11 refractors

The adapters used for my Lunt 50 mod are these: TS-Optics Adapter with M68 male thread and M48x0.75 female thread TS-Optics M68 System - Conversion Adapter with continuous M68x1 female Thread The adapters I described in my blog are not actually necessary if one uses a front D-ERF because in this ca...
by krakatoa1883
Wed Jun 30, 2021 12:03 pm
Forum: This is SolarChat !!
Topic: 29 June: AR12835/12836 region in Ca K light.
Replies: 17
Views: 737

Re: 29 June: AR12835/12836 region in Ca K light.

These are masterpieces, Peter, great! :bow
by krakatoa1883
Wed Jun 30, 2021 12:02 pm
Forum: This is SolarChat !!
Topic: 31st May 2021 Catch up
Replies: 18
Views: 564

Re: 31st May 2021 Catch up

Great set of images, Alexandra!
by krakatoa1883
Tue Jun 29, 2021 6:22 pm
Forum: This is SolarChat !!
Topic: June 28 2021 Observations
Replies: 8
Views: 374

Re: June 28 2021 Observations

Thanks, James, your detailed reports are always a welcomed reading!
by krakatoa1883
Tue Jun 29, 2021 6:12 pm
Forum: This is SolarChat !!
Topic: 28.06.2021 Massive flare SW of AR12835
Replies: 16
Views: 726

Re: 28.06.2021 Massive flare SW of AR12835

Great work and well captured flare, congratulations.
by krakatoa1883
Tue Jun 29, 2021 6:09 pm
Forum: SPoD Archive
Topic: WL and Ha FD on June, 29th
Replies: 6
Views: 458

Re: WL and Ha FD on June, 29th

Fine images, very sharp and well processed. I personally don't like yellow on "white light" images, though, but it's matter of personal taste.
by krakatoa1883
Tue Jun 29, 2021 6:09 pm
Forum: This is SolarChat !!
Topic: WL and Ha FD on June, 29th
Replies: 16
Views: 706

Re: WL and Ha FD on June, 29th

Fine images, very sharp and well processed. I personally don't like yellow on "white light" images, though, but it's matter of personal taste.
by krakatoa1883
Sun Jun 27, 2021 7:04 pm
Forum: This is SolarChat !!
Topic: June 27 2021 AR2835 WL Ha C11
Replies: 33
Views: 1420

Re: June 27 2021 AR2835 WL Ha C11

Excellent images with impressive resolution, great work!
by krakatoa1883
Sun Jun 27, 2021 7:02 pm
Forum: This is SolarChat !!
Topic: 27.06.2021 Mush and cloud.
Replies: 6
Views: 360

Re: 27.06.2021 Mush and cloud.

Lot of details in your images, second set is very good, 3rd from the top for me is the best.
by krakatoa1883
Sun Jun 27, 2021 6:58 pm
Forum: This is SolarChat !!
Topic: June 27th - Before Clouds
Replies: 9
Views: 449

Re: June 27th - Before Clouds

Beautiful images, Brian, WL disc and AR12835 are impressive.
by krakatoa1883
Sun Jun 27, 2021 3:15 pm
Forum: This is SolarChat !!
Topic: AR12835 in Ha
Replies: 13
Views: 599

Re: AR12835 in Ha

Looks very good, Stu, lot of resolution around those spots.
by krakatoa1883
Sun Jun 27, 2021 3:11 pm
Forum: This is SolarChat !!
Topic: Late AR2833 and proms June 24, 2021
Replies: 22
Views: 646

Re: Late AR2833 and proms June 24, 2021

Beautiful images, Franco, love your H-alpha color, tried to obtain a similar tone with GIMP but failed, are you using PS ?
by krakatoa1883
Sun Jun 27, 2021 2:57 pm
Forum: This is SolarChat !!
Topic: SUNDAY 27th - AR2835 is GROWING FAST !!
Replies: 4
Views: 315

Re: SUNDAY 27th - AR2835 is GROWING FAST !!

Thanks for the update, it seems that more sunspot regions are also rotating into view.
by krakatoa1883
Sun Jun 27, 2021 2:52 pm
Forum: This is SolarChat !!
Topic: Screenshot from today 27th June
Replies: 14
Views: 519

Re: Screenshot from today 27th June

Fine CaK disc, Nigella. A new active region is emerging from the NE limb.
by krakatoa1883
Sun Jun 27, 2021 2:49 pm
Forum: This is SolarChat !!
Topic: June 26 - AR12835, proms and discs
Replies: 13
Views: 491

Re: June 26 - AR12835, proms and discs

Thanks for your kind comments. Franco, the 100ED mod works very well for H alpha, unfortunately the scope is not nearly as good for CaK, a long focus achromat would work much better.
by krakatoa1883
Sat Jun 26, 2021 3:07 pm
Forum: This is SolarChat !!
Topic: June 18, 22 2021 AR12833 WL C11
Replies: 14
Views: 742

Re: June 18, 22 2021 AR12833 WL C11

Top H-alpha images, really impressive!
by krakatoa1883
Sat Jun 26, 2021 3:05 pm
Forum: This is SolarChat !!
Topic: Not quite heads up for 26th June
Replies: 10
Views: 447

Re: Not quite heads up for 26th June

Fine results, Nigella. Your Lunt 60 DS seems really good as the disc is very evenly illuminated.
by krakatoa1883
Sat Jun 26, 2021 3:02 pm
Forum: This is SolarChat !!
Topic: Surge Prominence at SE, Animation with bad seeing
Replies: 12
Views: 574

Re: Surge Prominence at SE, Animation with bad seeing

Great animation indeed in spite of the seeing, well done!
by krakatoa1883
Sat Jun 26, 2021 3:00 pm
Forum: This is SolarChat !!
Topic: June 26 - AR12835, proms and discs
Replies: 13
Views: 491

June 26 - AR12835, proms and discs

Very bad seeing today here due to high currents flowing on the south border of a UK depression and the north border of an African anticyclone. But the sunny day and the presence of the new 12835 active region strongly invited to look at the Sun. I tried to image the new AR in CaK but the result was ...
by krakatoa1883
Fri Jun 25, 2021 9:08 am
Forum: This is SolarChat !!
Topic: Sun FD in H-Alpha and CaK 23th of June 2021
Replies: 9
Views: 431

Re: Sun FD in H-Alpha and CaK 23th of June 2021

Fine images, well processed.
by krakatoa1883
Tue Jun 22, 2021 2:07 pm
Forum: This is SolarChat !!
Topic: CaK imaging of the SUN, FD, 20-06-2021.
Replies: 13
Views: 621

Re: CaK imaging of the SUN, FD, 20-06-2021.

Very fine discs especially @full res
by krakatoa1883
Tue Jun 22, 2021 1:53 pm
Forum: This is SolarChat !!
Topic: Heads Up 22nd June
Replies: 13
Views: 478

Re: Heads Up 22nd June

Fine captures, Nigella, beautiful cat. My cats too love to stay with me while at the telescope.
by krakatoa1883
Tue Jun 22, 2021 1:48 pm
Forum: This is SolarChat !!
Topic: Animation of NW Sun, 19 June 2021, 111 minutes, 115 frames
Replies: 9
Views: 516

Re: Animation of NW Sun, 19 June 2021, 111 minutes, 115 frames

Fantastic video... 111 minutes it's definitely beyond my patience :lol:
by krakatoa1883
Tue Jun 22, 2021 1:37 pm
Forum: This is SolarChat !!
Topic: AR2833 and FDs in various lights 22nd June 2021
Replies: 20
Views: 597

Re: AR2833 and FDs in various lights 22nd June 2021

Great images, Stu, excellent work. H-alpha is particularly beautiful and well processed.
by krakatoa1883
Tue Jun 22, 2021 1:35 pm
Forum: This is SolarChat !!
Topic: AR12833 and a long filament
Replies: 15
Views: 520

Re: AR12833 and a long filament

Many thanks to all of you, much appreciated :)
by krakatoa1883
Mon Jun 21, 2021 6:23 pm
Forum: This is SolarChat !!
Topic: AR12833 and a long filament
Replies: 15
Views: 520

AR12833 and a long filament

The region around 12833 countinues to be very interesting. The spot is several days old but still persists and in H alpha is really spectacular with that filamentary penumbra that makes it similar to a sea anemone. That long filament to the east of it is a nice addition to the picture. Thanks for lo...
by krakatoa1883
Mon Jun 21, 2021 6:08 pm
Forum: This is SolarChat !!
Topic: Animation AR12833, 2021-6-20, 92 frames, 90 minutes
Replies: 8
Views: 375

Re: Animation AR12833, 2021-6-20, 92 frames, 90 minutes

Great work, Alexandros, really impressive.
by krakatoa1883
Sun Jun 20, 2021 2:53 pm
Forum: This is SolarChat !!
Topic: Today's SUN (20210620) | FD H-alpha
Replies: 9
Views: 504

Re: Today's SUN (20210620) | FD H-alpha

Very nice discs, Pedro, and beautiful plants too.
by krakatoa1883
Sat Jun 19, 2021 7:49 am
Forum: This is SolarChat !!
Topic: AR12833 in H-alpha
Replies: 9
Views: 397

Re: AR12833 in H-alpha

Thanks, Peter, now is much better! I don't have PS, I am using GIMP but the gradient tool is complicated, I don't like it.
by krakatoa1883
Fri Jun 18, 2021 8:20 pm
Forum: This is SolarChat !!
Topic: 1h Animation of many solar activities, 17 June 2021
Replies: 24
Views: 961

Re: 1h Animation of many solar activities, 17 June 2021

Great animation, you have done an excellent work. I follow the same steps for my own animations but I use GIMP instead of PS for generating the gif.
by krakatoa1883
Fri Jun 18, 2021 3:34 pm
Forum: This is SolarChat !!
Topic: AR12833 in H-alpha
Replies: 9
Views: 397

Re: AR12833 in H-alpha

Thanks Alexandra. Franco, I was really in a hurry, usually I take a flat but this time i didn't so the upper part of the image is darker than the rest....
by krakatoa1883
Fri Jun 18, 2021 2:39 pm
Forum: This is SolarChat !!
Topic: AR2833 and proms June 17th, 2021
Replies: 17
Views: 700

Re: AR2833 and proms June 17th, 2021

Beautiful work, Franco, are blue proms H alpha too ?
by krakatoa1883
Fri Jun 18, 2021 2:38 pm
Forum: This is SolarChat !!
Topic: 18th June Quick process from this morning
Replies: 16
Views: 505

Re: 18th June Quick process from this morning

Very fine CaK discs, very sharp. Have you used any focal reducer ?
by krakatoa1883
Fri Jun 18, 2021 2:36 pm
Forum: This is SolarChat !!
Topic: AR12833 in H-alpha
Replies: 9
Views: 397

AR12833 in H-alpha

This spot is still very prominent but doesn't seem to be evolving beyond the present stage. It's a nice view in white light because of the well developed penumbra and in H-alpha too as it is surrounded by several filaments. Below is an image I took with my usual setup, since I was in a hurry I compl...
by krakatoa1883
Sun Jun 06, 2021 5:51 pm
Forum: This is SolarChat !!
Topic: Answer by LUNT re: Hazy area on front internal lens of 130MT
Replies: 15
Views: 585

Re: Answer by LUNT re: Hazy area on front internal lens of 130MT

Be very careful in dismantling that kind of objective. Lenses in triplets are usually held on the optical axis by means of radial screws on the the cell that push on the lens edges, check if this is the case by removing the dew shield. If yes, you will need to loose these screws before to remove the...
by krakatoa1883
Sun Jun 06, 2021 5:29 pm
Forum: This is SolarChat !!
Topic: Some more CaK shots.
Replies: 9
Views: 388

Re: Some more CaK shots.

Fne images, sharp and well processed
by krakatoa1883
Sat Jun 05, 2021 5:44 pm
Forum: This is SolarChat !!
Topic: Heads Up 5th June
Replies: 13
Views: 452

Re: Heads Up 5th June

I usually apply the gamma in post-processing, use little of it in H-alpha as it helps while focusing. I think it's only a matter of personal preferences.
by krakatoa1883
Sat Jun 05, 2021 2:29 pm
Forum: This is SolarChat !!
Topic: 5.06.2021 AR12828, 9 and a flare in the SW.
Replies: 12
Views: 353

Re: 5.06.2021 AR12828, 9 and a flare in the SW.

Good captures, much detailed. Looked at your blog, a 7 inch refractor is my dream :D
by krakatoa1883
Sat Jun 05, 2021 2:25 pm
Forum: This is SolarChat !!
Topic: Heads Up 5th June
Replies: 13
Views: 452

Re: Heads Up 5th June

Fine image, Nigella. Noted you keep the gamma all to the right, is it just for this picture or is it your normal practice ? I usually disable this function while taking the video.
by krakatoa1883
Sat Jun 05, 2021 2:15 pm
Forum: This is SolarChat !!
Topic: Today's SUN (20210604) | LUNT152 Good seeing
Replies: 8
Views: 483

Re: Today's SUN (20210604) | LUNT152 Good seeing

Fine set of images, Pedro, always enjoy your videos.