The Ring Nebula - M57

Astrophotography details:

Film Hypered Agfachrome RSX 100
Telescope/camera Meade LX-200 10"
F-ratio F/10 (Prime focus)
Exposure time 2 hours
AutoGuider Meade Pictor 201-XT
Autoguider exposure time 7 seconds
guide star SAO 67518
Date of Photo 2125 Hours local, 8 November 1996
Location Dark site within the White Mountains at the 9200 foot elevation level.
Additional image processing Image was brightness and contrast adjusted. The image has been cropped and expanded. Note the difference in color between this photo and the other Ring nebula photos indicating differences between types of film. 
Posted  8 February 97