Stephans Quintett bei 400mm f/9 mit ST-2000XCM
Object: Stephans Quintett
Date: 08.09.08
Location: Oberes Schlierental 1450m ü. M.
SQM: 21.62m/s2 at 01.25UTC/09.09.08
Telescope: Astrooptik Keller Cassegrain 400mm f/9
Mount: ALT-7
Autoguiding: Second chip in SBIG ST-2000XCM
Camera: SBIG ST-2000XCM
Dark Frame: -20°C
Exposure: 10 x 480s + 2 x 720s, total 104minutes
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