Comet C/2009 P1 (Garradd) at M 15 (animation)

This short animation is made from 12 individual LRGB frames, 2 min. exp. time in each channel. Taken between 23:32 UT on August 2nd (first frame) and 1:42 UT on August 3rd 2011 (last frame). Due to unstable atmospheric conditions the color and brightness of individual frames change from frame to frame. Please check also this hi-res Vimeo


Technical Details:

Optics: 12" ASA Astrograph at F/6.8
Mount: ASA DDM 85
Camera: SBIG STL-11000M
Filters: Astronomik LRGB filters
Dates/Times: 2/3 August 2011
Location: Rozhen
Exposure Details: L = 2 min., R = 2 min., G = 2 min.,B = 2 min. (each os 12 frames)
Subexposures: 2 minutes
Acquisition: CCD Soft
Processing: PixInsight, Photoshop CS

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