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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

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