Search found 2559 matches

by michael.h.f.wilkinson
Wed Aug 09, 2017 11:43 am
Forum: This is SolarChat !!
Topic: August 8, 2017: More disks in Ca-K and WL
Replies: 2
Views: 222

August 8, 2017: More disks in Ca-K and WL

I had beautiful clear skies in Fishers, Indiana yesterday morning, so got out the 80mm and shot a few more disks. Not much is going on in white light, just AR 2670 continuing its progress across the disk, but Ca-K does show some proms, especially in the part inverted shots, and more plage around the...
by michael.h.f.wilkinson
Wed Aug 09, 2017 11:34 am
Forum: Great American Solar Eclipse August 21 2017
Topic: Photographing the Eclipse
Replies: 2
Views: 464

Re: Photographing the Eclipse

Very useful indeed
by michael.h.f.wilkinson
Tue Aug 08, 2017 2:03 am
Forum: This is SolarChat !!
Topic: Sol from the 7th of August 2017.
Replies: 10
Views: 567

Re: Sol from the 7th of August 2017.

Really lovely images
by michael.h.f.wilkinson
Mon Aug 07, 2017 10:02 pm
Forum: This is SolarChat !!
Topic: August 5, 2017: More shots from the USA, with Ca-K proms this time
Replies: 5
Views: 350

Re: August 5, 2017: More shots from the USA, with Ca-K proms this time

Thanks, everyone! Curious to see how eclipse images in Ca-K will come out
by michael.h.f.wilkinson
Mon Aug 07, 2017 10:00 pm
Forum: Great American Solar Eclipse August 21 2017
Topic: My Backyard Test Assembly
Replies: 9
Views: 909

Re: My Backyard Test Assembly

That looks brilliant
by michael.h.f.wilkinson
Sun Aug 06, 2017 1:15 pm
Forum: This is SolarChat !!
Topic: August 5, 2017: More shots from the USA, with Ca-K proms this time
Replies: 5
Views: 350

August 5, 2017: More shots from the USA, with Ca-K proms this time

Had another imaging session here, with the APM 80mm F/6, ASI178MM, and alternatively the Lunt Wedge with Baader Solar Continuum and Astronomik L filter to block the IR leak, or the Lunt Ca-K module. Seeing was pretty decent. I stacked 400 out of 4000 frames using AS!3, except for the prom shots, whe...
by michael.h.f.wilkinson
Sat Aug 05, 2017 12:53 pm
Forum: Great American Solar Eclipse August 21 2017
Topic: Where is everyone headed ?
Replies: 11
Views: 1048

Re: Where is everyone headed ?

I am going to Glendo, Wyoming
by michael.h.f.wilkinson
Sat Aug 05, 2017 2:47 am
Forum: This is SolarChat !!
Topic: Nice big hedgerow of proms today
Replies: 5
Views: 346

Re: Nice big hedgerow of proms today

That is really superb
by michael.h.f.wilkinson
Fri Aug 04, 2017 1:50 pm
Forum: Great American Solar Eclipse August 21 2017
Topic: My kit for the solar eclipse, tested in my back garden
Replies: 4
Views: 592

My kit for the solar eclipse, tested in my back garden

Just before leaving I did a last balance test of the kit I plan to use. Fortunately, I have a little band of sherpas (my sons) who are very happy to carry part of the kit in their carry-on luggage. The kit consists of my APM 80 mm triplet, with Ca-K module and ASI178MM, and my Canon EOS 700D with 10...
by michael.h.f.wilkinson
Fri Aug 04, 2017 2:52 am
Forum: This is SolarChat !!
Topic: New sunspot on Aug 2
Replies: 10
Views: 565

Re: New sunspot on Aug 2

Lovely detail in those images
by michael.h.f.wilkinson
Fri Aug 04, 2017 2:49 am
Forum: This is SolarChat !!
Topic: August 2, 2017: First images from the USA
Replies: 5
Views: 305

August 2, 2017: First images from the USA

Hi All, I have been away far too long. I have been busy at work, plus moderation tasks on Stargazer's Lounge (and posting stuff there) so I haven't found time to visit this forum enough. I am currently in the USA (eclipse related of course). I am first visiting friends in Indiana, but will be in Wyo...
by michael.h.f.wilkinson
Mon May 09, 2016 8:17 am
Forum: This is SolarChat !!
Topic: May 7, 2016: Full disk and small animation, plus Lunt35 test
Replies: 5
Views: 417

Re: May 7, 2016: Full disk and small animation, plus Lunt35

Very nice indeed! Loved my little LS35, but the focuser clearly needs improvement
by michael.h.f.wilkinson
Thu May 05, 2016 10:35 pm
Forum: This is SolarChat !!
Topic: Return of AR2529 yet to be renamed
Replies: 8
Views: 760

Re: Return of AR2529 yet to be renamed

I was wondering whether it would return. Hope to get a shot in tomorrow
by michael.h.f.wilkinson
Wed May 04, 2016 8:27 pm
Forum: This is SolarChat !!
Topic: Dual-band refractor interest?
Replies: 6
Views: 450

Re: Dual-band refractor interest?

For me the sheer size would mean I would need a new mount, and a place to store the big tube. For now that is out of the question. Should I later find a place for an obsy, I would certainly be interested.
by michael.h.f.wilkinson
Wed May 04, 2016 8:26 pm
Forum: This is SolarChat !!
Topic: Wednesday Morning Fun With The HaT - 4th May
Replies: 14
Views: 638

Re: Wednesday Morning Fun With The HaT - 4th May

Lovely sitll and superb animation
by michael.h.f.wilkinson
Wed May 04, 2016 7:29 pm
Forum: This is SolarChat !!
Topic: May 4, 2016: Full disks, the big and little mosaics
Replies: 3
Views: 376

May 4, 2016: Full disks, the big and little mosaics

First up is the little 2-pane mosaic taken with the 2x TeleXtender in my 80mm F/6. Grey scale: https://stargazerslounge.com/uploads/monthly_2016_05/sunCaK04052016mosaic.jpg.29413edfe7120c3b45ddeaaae6b30d21.jpg Pseudo colour: https://stargazerslounge.com/uploads/monthly_2016_05/sunCaK04052016mosaicco...
by michael.h.f.wilkinson
Wed May 04, 2016 7:14 pm
Forum: This is SolarChat !!
Topic: A new beginning ....
Replies: 9
Views: 476

Re: A new beginning ....

Very nice disk!
by michael.h.f.wilkinson
Wed May 04, 2016 7:12 pm
Forum: This is SolarChat !!
Topic: Dual-band refractor interest?
Replies: 6
Views: 450

Re: Dual-band refractor interest?

Very interesting. I note the Solar Spectrum manual suggests an optimum of F/30 (hence the F/7.5 preference). I will get in touch with a friend and try his 100mm F/9 frac, and see how that works with the Solar Spectrum filter, especially when stopped down with the 90mm ERF I have
by michael.h.f.wilkinson
Wed May 04, 2016 6:57 pm
Forum: This is SolarChat !!
Topic: AR2535 with the 300 mm solar Newtonian
Replies: 27
Views: 1078

Re: AR2535 with the 300 mm solar Newtonian

Superb images. Really stunning
by michael.h.f.wilkinson
Wed May 04, 2016 3:56 pm
Forum: This is SolarChat !!
Topic: May 4, 2016: Proms from this morning
Replies: 11
Views: 391

May 4, 2016: Proms from this morning

Got some clear skies in the morning, so grabbed a load of data before going to work. The proms in the north-east are brilliant. These are 4 pane mosaics Grey scale: https://stargazerslounge.com/uploads/monthly_2016_05/sun04052016proms.jpg.ff1faada0726d66799eabcbea1740074.jpg Pseudo colour: https://s...
by michael.h.f.wilkinson
Wed May 04, 2016 3:53 pm
Forum: This is SolarChat !!
Topic: Dual-band refractor interest?
Replies: 6
Views: 450

Re: Dual-band refractor interest?

Interesting. I personally might like a slightly faster F/6.5-7.5, for use with my Baader TZ-4 and Solar Spectrum unit, F/8 os OK, F/10 too slow. One problem in Ca-K might be the fact that many Ca-K modules are rated to 4" aperture. Of course, correcting for CA is mainly an issue if you want to achie...