M27 - Dumbell Nebula

Vulpecula

Planetary Nebulae

M 27 - Planetary Nebula
Date: Jul 25, 2008 Time: 23:30 CST Location: Haltom City Tx
Instrument: 253mm F/9 Ritchey Chretien Mount: AP1200GTO Guiding: ST-10XME Internal Guider
Extra Hardware: Water Assisted Cooling Seeing: Good Transparency: Fair
Camera: SBIG ST-10XME Filter Wheel: Internal Filter: AstroDon LRGB
Exposure: 4 x 300 Seconds Luminance Camera Control: MaximDL 4.11 Processing: MaximDL,Sigma-Reject, PSCS

Image Center: RA 19h 59m 36s, Dec +22d 43m 18s, Pos Angle +315.0 degrees
Effective Focal Length 2276.7 mm ~ .62" per Pixel
Notes: Calm. Temp ~75 Degrees F. Guiding was ~ 1 arc second - First Light with Water Assisted Cooling