This is 1/4000th of a second with the Canon T3i through the SW80ED with 0.85x flattener/reducer. We are near the peak of the solar cycle. The big spot upper right is numbered 3590 by those who count.
This is 1/4000th of a second with the Canon T3i through the SW80ED with 0.85x flattener/reducer. We are near the peak of the solar cycle. The big spot upper right is numbered 3590 by those who count.
Here
is my take on the annular eclipse. I tried to set up near the
center line in Beeville or George West (both Texas towns) but met clouds. With time running
out, I drove north and bet on Kenedy, TX's Joe Gulley Park---and then for 40 minutes shot through every
break in the (still present) clouds. It was pretty exciting. These are various exposures through the SWED80 and 0.85x reducer-flattener and my old Canon T3i. Oddly, perhaps, I am most pleased by the clarity of the sunspot in the second image. I had very little time to focus and was happy to see that detail.
I've wanted to collect on this target for a long time. It's actually positioned over my latitude, but it can't be shot from the suburbs easily. I tried to shoot this once and only collected the brightest part of the nebula in a noisy and grainy stack. So someone else whose telescope is in the southwest Utah desert collected this data, and this is my rendition.
This is 100 minutes of Lum combined with 50 minutes each of RGB from Starbase's ATEO-1 telescope, a 16" f/3.7 Dream Aerospace Systems reflector.
Here is an earlier image with a 10" reflector:
https://polarisb.blogspot.com/2012/02/m65-ngc3623-feb-25-2012.html
And another in 2019 with an 8" reflector:
https://polarisb.blogspot.com/2019/04/m65-sprin-2019.html
This latest image is from very fine AG Optical data: 22 x 300 each of RGB and 81 x 300 of Lum. It's better data than I've used in the past, and it's better color.
I tried several times to see NGC 2158 with a telescope from the suburbs. My wonderful 6" f/8 would only show me one star. My C8 would show me that star and hints of two others. My CFF 290 Classical Cassegrain would show me those three and a glow with averted vision, on the night I tried it. With a camera on a small scope, the cluster stands out. This is just 16x600" with the Atik 460EXC through the SWED80 at f/6.375. I am always impressed with the optical quality of the ED80, and the flattener/reducer does a superb job.