M 71 - Globular Cluster

Sagitta

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Globular Cluster

M 71 - Globular Cluster
Date: Oct 13 2007 Time: 11:30 CST Location: Haltom City Tx
Instrument: 253mm f/9 Ritchey Chretien Mount: AP1200GTO Guiding: STL-Remote with Rogue OAG
Extra Hardware: None Seeing: Good Transparency: Fair
Camera: SBIG STL11K Filter Wheel: Internal Filter: AstroDon 6nm L
Exposure: 3 x 600 Seconds Luminance Camera Control: MaximDL 4.11 Processing: MaximDL,Sigma-Reject, PSCS
Image Center: RA 19h 54m 07s, Dec +18d 48m 05s, Pos Angle 359d 40'
Effective Focal Length 2276.7 mm ~ .82" per Pixel
Notes: Calm. Temp ~60 Degrees F. Guiding was ~ .5 arc second