The pacman nebula (NGC 281) in the constellation of Cassiopeia
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DESCRIPTION |
NGC
281 is an H II region in the
constellation of Cassiopeia
and part of the Perseus
Spiral Arm. It includes the open cluster IC 1590,
the multiple star HD 5005,
and several Bok
globules. Colloquially, NGC 281 is also known as the Pacman
Nebula for its resemblance to the video game character. Wikipedia informations |
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ACQUISITION |
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Date
& Location |
1, 2, 7 Aout 2010 – Lozère, France |
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Telescope/Optics |
Takahashi FSQ 106ED |
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Mount |
Takahashi EM200 |
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Camera
CCD |
SBIG STL 4020M |
|
Focuser |
Robofocus/FocuxMax |
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Filters |
Ha/SII/OIII Astrodon filters |
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Guidage |
Off-axis MMOAG (Astrodon) STL remote guider TC-237H |
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IMAGING PROCESS |
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Exposures |
Ha(12*15min) SII(12*15min) OIII(12*15min) Total : 9h Out temperature : 16°C In CCD temperature : -20° |
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Softwares
for acquisition |
Robofocus, Focusmax, CCDsoft V5, TheShy6 Pro, CCDAP 4, CCDInspector |
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Softwares
for digital image processing |
Calibration, Registration, Color stack with CCDstack 1.0 (CCDIS
plug-in) Full processing with PIXINSIGHT Core version 1.6 |