NGC281_2009-01-09

Nebulae - NGC 281

R.A.: 00h 52m 59.3s
Dec.: +56° 37' 19"
Mag.: 7.0

NGC 281 is an H II region in the constellation of Cassiopeia and part of the Perseus Spiral Arm. It includes or is near the open cluster IC 1590, the double star HD 5005, and several Bok globules. It is visible in amateur telescopes from dark sky locations. It is sometimes unofficially referred to as the Pacman Nebula owing to its fancied resemblance to the eponymous hero of the arcade game Pac-Man.

NGC 281 - PacMan Nebula

Date/time: 09.01.2009 18:56 to 09.01.2009 21:47
Az./Alt. positions: 317° / 80° to 303° / 57°
Ambient conditions: -10°C, transparency 5/5, seeing 3/5,
Full Moon, Moonset at 07:30
Location: Trier, Germany

Equipment:
Telescope: TMB 92 SS f/5.5 with TSFlat
Mount: CGE guided through a SCT 8” with ST-4000XCM
Camera: ATIK 16 IC-S monochrome
Filters: Baader H- 7nm

Acquisition:
Software: ArtemisCapture and CCDSoft V5
FOV, Image scale: 29.2 x 37,8 arcmin, 3,01 arcs/pixel
Sub-exposures: 3 hours (18 x 10min) lights at 1:1
60 x 1s EL flats

Processing:
Calibration, stacking and DDP in Images Plus 3.75,
curves and levels adjustments in CS3, noise reduction
with Carbonis Actions

Comments:
Some flexure was present, so guiding was not perfect. Very good S/N ratio,
considering the strong full Moon.

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Information

Filename: nebulae/ngc281_2009-01-09_full.jpg
Filesize: 179039 Kb
Download limit: unlimited

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