M 71 - Globular Cluster

Sagitta

Globular Cluster

M 71 - Globular Cluster
Date: Jul 26, 2008 Time: 11:30 CST Location: Haltom City Tx
Instrument: 253mm f/9 Ritchey Chretien Mount: AP1200GTO Guiding: ST-10XME Internal Guider
Extra Hardware: None Seeing: Good Transparency: Fair
Camera: SBIG ST-10XME Filter Wheel: CFW-10 Filter: AstroDon 6nm L
Exposure: 6 x 600 Seconds Luminance Camera Control: MaximDL 4.11 Processing: MaximDL,Sigma-Reject, PSCS

Image Center: RA 19h 53m 46s, Dec +18d 46m 44s, Pos Angle 278.1 Degrees
Effective Focal Length 2276.7 mm ~ .62" per Pixel
Notes: Calm. Temp ~80 Degrees F. Guiding was ~ .5 arc second