Hale-Bopp - 8 february 1997

The start of development of ion and dust tail. In this image are also visible the planetary nebula M27 (top) and the globular cluster M71 (a little right of the comet).
 

Technical Data
Optics Photographical objective
Focal Lenght 200 mm
Focal Ratio f/3,5
Exposure Time 2 min
Film Scotch Chrome 800-3200
Developement sensibility 3200 ISO
Location San Martino (VA, on the Italian Prealps) at 1083m
Date and time of exposure start 8 february 1997, 4.55 UT
Mount Meade 2080
Tracking Manual
Notes Rescanned in 2002

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