The Whirlpool Galaxy - M51

 Astrophotography details:

Film PJM-2 Ektapress Multispeed 640 film
Telescope/camera Meade LX-200 10"
F-ratio F/10 (Prime focus)
Exposure time 90 minutes  (Gusty wind caused autoguider to begin to lose lock. Had to stop the shot at 90 minutes.)
AutoGuider Meade Pictor 201-XT
Autoguider exposure time 1 second
guide star SAO 44642?
Date of Photo 2225 Hours local, 20 April 1998
Location Picacho Peak State Park, Arizona
Additional image processing Brightness and contrast adjusted. Cropped.
Posted  20 Apr 98