View Single Post
  #10  
Old 09-05-2015, 03:59 PM
gregbradley's Avatar
gregbradley
Registered User

gregbradley is offline
 
Join Date: Feb 2006
Location: Sydney
Posts: 18,185
Quote:
Originally Posted by alpal View Post
Nice pic Greg,
& as you say -
you can even make improvements on that.

cheers
Allan
I think ideally I go for about 8-10 hours with that camera on the Honders. That should give quite a strong signal to noise ratio. Widefield potentially shorter.

Quote:
Originally Posted by jase View Post
An improvement over Cent A, Greg. The scope sure sucks in the photons showing the faint outer regions of those faint spiral arms. Image looks a touch soft to my eyes. I'm expecting the focus to snap with such an instrument but perhaps the conditions you note worked against you. If this image is a glimpse of what's to come, I'm getting pretty excited. No doubt you are too. Well done.
The touch of softness is probably focus not exact, windy poorish conditions plus autoguiding could have been better as I need a new TPoint and refined Polar alignment. There is slight drift between subs which I suppose is good for dither but shows PA is a bit off.

Quote:
Originally Posted by Placidus View Post
Beautiful result, Greg. The long exposure did the trick. Gorgeous colours.
Thanks Mike. I also am working on a 25 hour version which is taken over 7 years, 3 scopes and 3 cameras. Its much the same but a bit deeper and more saturated colour.

Greg.
Reply With Quote