Another NGC3576 at 3 metres

[gregbradley]

I took this recently under a very bright 2/3rds moon.

Its a very dynamic area in 5nm Ha less so in O3 and S11.

http://www.pbase.com/gregbradley/image/163106845/large regular size

http://www.pbase.com/gregbradley/image/163106845/original large size

Greg.

[Paul Haese]

The detail and contrast levels look good Greg. I do note though there is quite a bit of weird star shapes bottom left, bottom right and top right of the image. Tilt I would imagine or perhaps stacking? I prefer your field of view to mine though.

[gregbradley]

I think it needs to be recollimated as I took the reducer off and last I collimated it I think the reducer was on. I did pack out tilt and spent some time on it so I got it to a good point but yeah there was still some of that left.
Recollimation is the next job.

Greg.

[Peter Ward]

Agreed.... unfortunately the star shapes are all over the shop. More the pity as it looks like the seeing wasn't too shabby....but without these challenges it would be a boring hobby ! ( but I'd much prefer they went away at times :) )

[gregbradley]

I'll adjust it and it'll all be good. I took off the reducer as it required a guide scope for guiding and that was a bit too variable. I plan to just image at the scopes native focal length. Its been perfect to the corners in the past so a recollimation should sort it out.

Greg.