B 33 - Dark Nebula

Orion

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Dark Nebula

B 33 - Dark Nebula
Date: Oct 19 2007 Time: 04:30 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 Ha
Exposure: 4 x 1800 Seconds Luminance Camera Control: MaximDL 4.11 Processing: MaximDL,Sigma-Reject, PSCS
Image Center: RA 05h 41m 25s, Dec -02d 26m 11s, Pos Angle 1d 40'
Effective Focal Length 2276.7 mm ~ .82" per Pixel
Notes: Calm. Temp ~60 Degrees F. Guiding was ~ .7 arc second