Cocoon and Deer Lick Group
Cleaned the C-14's corrector plate and spent a couple of hours on collimation and thought I'd try a couple of pictures. Both of the following are made from stacking 30 two minute exposures, each which was first dark subtracted and flat fielded. Scope was working at its native f/11 (3,910 mm). Camera was binned 2x2 resulting in a scale of 0.733"/pixel. Maybe next time I'll try 1x1 (0.366"/pixel). Cocoon Nebula, IC 5146: http://users.wirelessbeehive.com/~paw/temp/10OCT2007.IC5146.60.jpg Deer Lick Group of galaxies in Pegasus: http://users.wirelessbeehive.com/~paw/temp/09oct2007.NGC7331.60.jpg I'm happy with the collimation and guiding but I just can't get the tiny pinpoint stars I see in so many others' pictures. Grumble... When I try this again I think I may refocus after every 5 or so images as the focus did change slightly during the time it took to shoot all 30 pictures. BTW, if anyone is interested I kept all of the original data which I'd be happy to email out in case someone else can do their magic (Photoshop) to make the stars smaller. Carpe Noctem! patrick
Wow! Patrick, you are good!! -- jb -- Patrick Wiggins <paw@wirelessbeehive.com> wrote:
Cleaned the C-14's corrector plate and spent a couple of hours on collimation and thought I'd try a couple of pictures.
Both of the following are made from stacking 30 two minute exposures, each which was first dark subtracted and flat fielded.
Scope was working at its native f/11 (3,910 mm).
Camera was binned 2x2 resulting in a scale of 0.733"/pixel. Maybe next time I'll try 1x1 (0.366"/pixel).
Cocoon Nebula, IC 5146:
http://users.wirelessbeehive.com/~paw/temp/10OCT2007.IC5146.60.jpg
Deer Lick Group of galaxies in Pegasus:
http://users.wirelessbeehive.com/~paw/temp/09oct2007.NGC7331.60.jpg
I'm happy with the collimation and guiding but I just can't get the tiny pinpoint stars I see in so many others' pictures. Grumble...
When I try this again I think I may refocus after every 5 or so images as the focus did change slightly during the time it took to shoot all 30 pictures.
BTW, if anyone is interested I kept all of the original data which I'd be happy to email out in case someone else can do their magic (Photoshop) to make the stars smaller.
Carpe Noctem!
patrick
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participants (2)
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Joe Bauman -
Patrick Wiggins