Search found 253 matches

by LTHB
Wed Nov 25, 2020 4:09 pm
Forum: This is SolarChat !!
Topic: Very active Sun of Nov 25
Replies: 14
Views: 141

Re: Very active Sun of Nov 25

Very nice, detailed close-ups! And you're right: It's great to see a sunspot of decent size again, after what feels like centuries!

Frank
by LTHB
Tue Nov 24, 2020 9:56 am
Forum: This is SolarChat !!
Topic: 22Nov20 - AR12783 in CAK (New images added on 23Nov)
Replies: 16
Views: 206

Re: 22Nov20 - AR12783 in CAK (New images added on 23Nov)

Very nice captures! The filters seem to working great and, judging from the resolution, you are having terrific seeing!

I'm looking forward to more of your CaK images! (I'll probably be clouded out for many weeks over here.)

Frank
by LTHB
Mon Nov 23, 2020 9:58 pm
Forum: This is SolarChat !!
Topic: Solar Talk - Monday 23rd November 19.30UT
Replies: 38
Views: 488

Re: Solar Talk - Monday 23rd November 19.30UT

Very informative talk - thanks, Mark!

Frank
by LTHB
Thu Nov 19, 2020 1:01 pm
Forum: Commercial Solar Filters/Cameras/Hardware
Topic: Coronagraph
Replies: 7
Views: 160

Re: Coronagraph

I am pretty sure Wolfgang Lille uses Lunt blocking filters for refurbishing Baader prominence viewers these days. Baader had used soft-coated 1.5A-filters that are no longer available. Contacting Wolfgang is a good idea, he is very friendly and knowledgeable.

Frank
by LTHB
Wed Nov 18, 2020 4:32 pm
Forum: Commercial Solar Filters/Cameras/Hardware
Topic: Coronagraph
Replies: 7
Views: 160

Re: Coronagraph

I think the blocking filters of Lunt and Coronado are about 6A.

Frank
by LTHB
Sat Nov 14, 2020 1:40 pm
Forum: This is SolarChat !!
Topic: Sun in three lights- 13th November 2020
Replies: 22
Views: 225

Re: Sun in three lights- 13th November 2020

Very nice session! I like the side-by-side montage in particular; it is really interesting to quickly compare structures in the different wavelengths. Unfortunately I seldom have clear skies long enough to change scopes and filters before the clouds are back.

Frank
by LTHB
Sat Nov 14, 2020 1:31 pm
Forum: Forum Support Issues
Topic: SPOD and sponsor images
Replies: 10
Views: 241

Re: SPOD and sponsor images

I normally use firefox with no problems at all, but I just checked with Chrome (in Ubuntu) and it also shows all the images.

Frank
by LTHB
Sat Nov 14, 2020 1:21 pm
Forum: This is SolarChat !!
Topic: 14Nov - AR2781/2 in CAK & HA (Single frame CAK Image added on 18 Nov)
Replies: 27
Views: 424

Re: 14Nov - AR2781 in CAK

Very nice image, and great resolution! Would you mind to tell a bit more about your experience with the Chroma filters? And one more question: Did you try some unsharp mask? (I also clearly prefer slightly soft images to oversharpened ones, but I still suspect you might get a bit more sharpness.) Ki...
by LTHB
Tue Nov 10, 2020 8:39 pm
Forum: This is SolarChat !!
Topic: Nov 8th - Multi Spectrum
Replies: 12
Views: 142

Re: Nov 8th - Multi Spectrum

What a productive session! Really everything you'd want to get from AR2781, plus proms and spicules, marvelous!
by LTHB
Tue Nov 10, 2020 8:30 pm
Forum: This is SolarChat !!
Topic: h-alpha disk, November 8th, 2020
Replies: 6
Views: 79

Re: h-alpha disk, November 8th, 2020

Thanks, folks!

Frank
by LTHB
Tue Nov 10, 2020 8:25 pm
Forum: This is SolarChat !!
Topic: AR2781 in CaK, November 8th, 2020
Replies: 8
Views: 148

Re: AR2781 in CaK, November 8th, 2020

Thanks everybody for the kind words! Geoff, I also noted the bright dots, but I do not know enough about Ellerman bombs to tell if these count. I did a quick search for CaK images to compare, but didn't find much: just one taken with a Baader K line filter: http://www.chamaeleon-observatory-onjala.c...
by LTHB
Tue Nov 10, 2020 11:27 am
Forum: This is SolarChat !!
Topic: h-alpha disk, November 8th, 2020
Replies: 6
Views: 79

h-alpha disk, November 8th, 2020

One more disk mosaic in h-alpha, this time, following Rainer's suggestion, a bit less dark.

Image

Full resolution here: https://live.staticflickr.com/65535/505 ... bbb2_o.jpg

Kind regards,

Frank
by LTHB
Sun Nov 08, 2020 10:26 pm
Forum: This is SolarChat !!
Topic: AR2781 in CaK, November 8th, 2020
Replies: 8
Views: 148

AR2781 in CaK, November 8th, 2020

Fortunately another late afternoon with blue skies over here, another chance to capture AR2781 in CaK:

Image

Kind regards,

Frank
by LTHB
Sun Nov 08, 2020 10:14 pm
Forum: SPoD Archive
Topic: AR2781 2020.11.08 Halfa/Calcium H-Line/White light
Replies: 9
Views: 57

Re: AR2781 2020.11.08 Halfa/Calcium H-Line/White light

Great resolution and very nice, clean processing!

Frank
by LTHB
Sun Nov 08, 2020 10:14 pm
Forum: This is SolarChat !!
Topic: AR2781 2020.11.08 Halfa/Calcium H-Line/White light
Replies: 14
Views: 189

Re: AR2781 2020.11.08 Halfa/Calcium H-Line/White light

Great resolution and very nice, clean processing!

Frank
by LTHB
Sun Nov 08, 2020 10:10 pm
Forum: This is SolarChat !!
Topic: h-alpha disk, November 7th, 2020
Replies: 7
Views: 110

Re: h-alpha disk, November 7th, 2020

Thanks, folks!

Rainer, I wanted the post-flare area not to burn out, but you're probably right. I keep that in mind for the next mosaic!

Regards,

Frank
by LTHB
Sun Nov 08, 2020 1:03 am
Forum: This is SolarChat !!
Topic: h-alpha disk, November 7th, 2020
Replies: 7
Views: 110

h-alpha disk, November 7th, 2020

Clear blue skies in November, almost unbelievable for northern Germany, and late afternoon seeing quite good, so I tried a disk mosaic. https://live.staticflickr.com/65535/50577785136_0b1f682422_o.jpg Unfortunately I botched the focus of the top pane. When I switched to CaK the sun was pretty low al...
by LTHB
Tue Nov 03, 2020 9:37 pm
Forum: This is SolarChat !!
Topic: h-alpha, November 3rd, 2020
Replies: 4
Views: 119

h-alpha, November 3rd, 2020

Just one quick shot of the late afternoon sun through thin clouds passing through, but I'm glad to see any sun at all in November! Autostakkert did a good job to remove the clouds. The coming AR looks promising! https://live.staticflickr.com/65535/50563623343_2b85f51f09_o.jpg Kind regards, Frank
by LTHB
Tue Oct 20, 2020 6:58 pm
Forum: This is SolarChat !!
Topic: Zoom Meeting - Any Interest
Replies: 63
Views: 1681

Re: Zoom Meeting - Any Interest

That's a good idea - I'd be interested! I probably won't make it next weekend (for job reasons...), but I might join in the following meeting, if I may!

Regards,

Frank
by LTHB
Mon Oct 19, 2020 6:37 pm
Forum: This is SolarChat !!
Topic: AR12776 in h-alpha, October 18th, 2020
Replies: 5
Views: 135

Re: AR12776 in h-alpha, October 18th, 2020

Thanks everybody! The images are from 13.33 and 15.43 UTC (plus or minus a couple of minutes - I didn't calibrate the time of my laptop). I've got a few more images taken some minutes before and after these two, but none from the two hours in between when I was clouded out completely. So my second i...
by LTHB
Sun Oct 18, 2020 10:10 pm
Forum: This is SolarChat !!
Topic: AR12776 in h-alpha, October 18th, 2020
Replies: 5
Views: 135

AR12776 in h-alpha, October 18th, 2020

Again some quick shots through brief gaps in the cloud cover to see how AR12776 is doing. A small flare showed up and developed for a while: https://live.staticflickr.com/65535/50502636463_c88a7c191e_o.jpg https://live.staticflickr.com/65535/50503354436_520498eb6f_o.jpg A little less than two hours ...
by LTHB
Wed Oct 14, 2020 12:18 pm
Forum: This is SolarChat !!
Topic: CaK and h-alpha, October 10th, 2020
Replies: 8
Views: 230

Re: CaK and h-alpha, October 10th, 2020

Thanks, folks!

Frank
by LTHB
Wed Oct 14, 2020 12:18 pm
Forum: This is SolarChat !!
Topic: CaK and h-alpha, October 13th, 2020
Replies: 6
Views: 193

CaK and h-alpha, October 13th, 2020

Just a quick peek through gaps in the yesterday's cloud cover to see what the remains of the active regions are doing. https://live.staticflickr.com/65535/50479319141_26ecb55250_o.jpg https://live.staticflickr.com/65535/50478608993_1fb2628200_o.jpg Full resolution: https://live.staticflickr.com/6553...
by LTHB
Sun Oct 11, 2020 9:25 pm
Forum: This is SolarChat !!
Topic: Today's SUN (20201011) | LUNT152 3 lights
Replies: 13
Views: 341

Re: Today's SUN (20201011) | LUNT152 3 lights

Fine images! I like the warm, glowing colours!

Frank
by LTHB
Sun Oct 11, 2020 9:18 pm
Forum: This is SolarChat !!
Topic: PicArt Sun!
Replies: 20
Views: 430

Re: PicArt Sun!

Very charming pieces of art!

Frank