M 51 - Spiral Galaxy

Canes Venatici

Spiral Galaxy

M 51 - Spiral Galaxy - North is Up
Date: Jun 10, 2008 Time: 23:30 CST Location: Haltom City Tx
Instrument: 253mm F/9 Ritchey Chretien Mount: AP1200GTO Guiding: ST10 - Internal Guide Chip
Extra Hardware: None Seeing: Fair Transparency: Fair
Camera: SBIG ST10XME Filter Wheel: Internal Filter: AstroDon L
Exposure: 6 x 600 Seconds Camera Control: MaximDL 4.11 Processing: MaximDL,Sigma-Reject, PSCS
Image Center: RA 13h 30m 12s, Dec +47d 09m 10s, Pos Angle -88d 40'
Effective Focal Length 2276.7 mm ~ .82" per Pixel
Notes: Calm. Temp ~40 Degrees F. Guiding was ~ 1 arc second