Comet C/2009 P1 (Garradd) at M 71 (animation)

This short animation is made from 8 individual LRGB frames, 1 min. exp. time in each channel. Taken between 23:32 UT on August 26th (first frame) and 1:12 UT on August 27th 2011 (last frame). Due to unstable atmospheric conditions the color and brightness of individual frames change from frame to frame.


Technical Details:

Optics: 12" ASA Astrograph at F/6.8
Mount: ASA DDM 85
Camera: SBIG STL-11000M
Filters: Astronomik LRGB filters
Dates/Times: 26/27 August 2011
Location: Rozhen
Exposure Details: L = 1 min., R = 1 min., G = 1 min.,B = 1 min. (each of 12 frames)
Subexposures: 1 minute
Acquisition: CCD Soft
Processing: PixInsight, Photoshop CS

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