Had a nasty day here today (weather wise), so I was very surprised to see stars when I went outside a little after 21:00. So I tested my latest SA arrangement in between the returning clouds.
Here is eta carinae captured with the C8, f/6.3, SA100, DMK 21 again but now I've ditched the filter wheel, and using the 2x barlow body and SA extension between the SA and the camera. This gives me near enough to 6 A/pixel.
Just to show that I do listen (sometimes
) I captured 8 x 13.7s images and subtracted a master dark made from 4 DFs. Temp 5C, brightness = 0, Gain =380
.
Noise is much better I think you'll agree.
Good H, He and Fe lines.
I may yet do a trial using the diagonal as the spacer between the SA and camera yet, but unless it provides a big advantage I think the barlow body is very user friendly
.
Al.
Whooopppsss! Take no notice of the time on the image... missed by 12 hours!
How embarrassment...
