Comet 17P Holmes | Gregg Ruppel

Photographer
Gregg Ruppel
Email
ruppelgl@slu.edu
Location of photo
Ellisville, MO
Date/Time of photo
10/27/2007
Equipment
Celestron C8 with an ST2000XM camera
Description
Twenty exposures of 30 seconds each through RGB filters combined to synthezize a luminance layer. Larson Sekanina rotational gradient filter (5%) applied to luminance and combined with the color image.
Website
www.ruppel.darkhorizons.org
All comments must follow the Sky & Telescope Terms of Use and will be moderated prior to posting. Please be civil in your comments. Sky & Telescope reserves the right to use the comments we receive, in whole or in part, and to use the commenter’s username, in any medium. See also the Terms of Use and Privacy Policy.

COMMENT