The Ring Nebula - M57

Astrophotography details:

Film Ektachrome 100 Elite II
Telescope/camera Meade LX-200 10"
F-ratio F/10 (Prime focus)
Exposure time 90 minutes
AutoGuider Meade Pictor 201-XT
Autoguider exposure time 7 seconds
guide star SAO 67518
Date of Photo 2200 Hours local, 16 Sep 1996
Location Bosque Farms, New Mexico
Additional image processing Image was color corrected significantly due to greenish cast of the new Ektachrome films (See Horsehead photos) and brightness and contrast adjusted.  Cropped and expanded.
Posted  8 February 97