M 100 - Spiral Galaxy

Coma Berenices

Spiral Galaxy

M 100 - Spiral Galaxy
Date: Apr 21 2009 Time: 01:30 CST Location: Fort Griffin, Tx
Instrument: 253mm f/9 Ritchey Chretien Mount: AP900GTO Guiding: ST-10XME Internal Guider
Extra Hardware: Instrument Rotator Seeing: Good Transparency: Good
Camera: SBIG ST-10XME Filter Wheel: CFW-10 Filter: AstroDon L
Exposure: 7 x 600 Seconds L Camera Control: MaximDL 4.11 Processing: MaximDL,CCDStack,PSCS2

Image Center: RA 12h 23m 25s, Dec +15d 46m 07s, Pos Angle 68.20d
Effective Focal Length 2276.7 mm ~ .62" per Pixel
Notes: Calm. Temp ~45 Degrees F. Guiding was ~ .7 arc second