The last weeks have been too busy to do much solar, except for the occasional quick peek at the marvellous images shown here on SL, but yesterday I found a little time to spend in the sun and also a sky clear enough for another attempt to produce a decent mosaic.
The seeing allowed zooming in a little, but no higher resolution:
Full resolution here: https://live.staticflickr.com/65535/502 ... f05a_o.jpg https://live.staticflickr.com/65535/502 ... f7cf_o.jpg
Kind regards,
Frank
h-alpha, August 7th, 2020
- dhkaiser
- Way More Fun to Share It!!
- Posts: 1702
- Joined: Sat Dec 14, 2019 2:57 pm
- Location: Indiana, USA
- Has thanked: 1407 times
- Been thanked: 899 times
Re: h-alpha, August 7th, 2020
Very nice. what equipment are you using?
Dan
South central Indiana
USA
South central Indiana
USA
- rsfoto
- Way More Fun to Share It!!
- Posts: 6159
- Joined: Mon Jun 18, 2012 8:30 pm
- Location: San Luis Potosi, México
- Has thanked: 9401 times
- Been thanked: 5568 times
Re: h-alpha, August 7th, 2020
Hi Frank,
Excellent images and an awesome even full disk illumination. Very well done
Excellent images and an awesome even full disk illumination. Very well done
regards Rainer
Observatorio Real de 14
San Luis Potosi Mexico
North 22° West 101°
Observatorio Real de 14
San Luis Potosi Mexico
North 22° West 101°
- eroel
- Way More Fun to Share It!!
- Posts: 9408
- Joined: Mon Dec 19, 2011 10:45 pm
- Location: México D.F.
- Been thanked: 4904 times
- marktownley
- Librarian
- Posts: 42272
- Joined: Tue Oct 18, 2011 5:27 pm
- Location: Brierley Hills, UK
- Has thanked: 20435 times
- Been thanked: 10243 times
- Contact:
Re: h-alpha, August 7th, 2020
Top shots Frank! I've been too busy also.
http://brierleyhillsolar.blogspot.co.uk/
Solar images, a collection of all the most up to date live solar data on the web, imaging & processing tutorials - please take a look!
Re: h-alpha, August 7th, 2020
Thanks folks!
Dan, I use a Tak Sky-90 with a double-stacked old (pre-Meade) SM90, the camera is an ASI290.
Rainer, the mosaic looks fairly even now, but unfortunately the etalons are not that even: I used a flat, and even after that the field gets darker towards the upper edge. I covered that up by using three panes for the mosaic (although two would suffice for the sun's surface), so that the upper ends of the two lower panes are hidden by the next pane, and the upper end of the upper pane is black anyway, so it doesn't show there.
Dan, I use a Tak Sky-90 with a double-stacked old (pre-Meade) SM90, the camera is an ASI290.
Rainer, the mosaic looks fairly even now, but unfortunately the etalons are not that even: I used a flat, and even after that the field gets darker towards the upper edge. I covered that up by using three panes for the mosaic (although two would suffice for the sun's surface), so that the upper ends of the two lower panes are hidden by the next pane, and the upper end of the upper pane is black anyway, so it doesn't show there.
- JochenM
- Way More Fun to Share It!!
- Posts: 2839
- Joined: Tue Dec 10, 2019 2:26 pm
- Location: Belgium
- Has thanked: 1200 times
- Been thanked: 1619 times
- Contact:
- Montana
- Librarian
- Posts: 34560
- Joined: Mon Oct 17, 2011 5:25 pm
- Location: Cheshire, UK
- Has thanked: 17667 times
- Been thanked: 8789 times
Re: h-alpha, August 7th, 2020
Very, very nice details when viewed at full size, superb work
Alexandra
Alexandra