IC434_2009-02-12

Nebulae - IC 434

R.A.: 05h 40m 59.0s
Dec.: -02° 27' 30.0"

The Horsehead Nebula is a dark nebula in the Orion constellation. The nebula is located just below Alnitak, the star furthest left on Orion's Belt, and is part of the much larger Orion Molecular Cloud Complex. It is approximately 1500 light years from Earth. It is one of the most identifiable nebulae because of the shape of its swirling cloud of dark dust and gases, which is similar to that of a horse's head.

IC 434 – The Horsehead Nebula

Date/time: 12.02.2009 21:00 to 12.02.2009 22:35
14.02.2009 20:00 to 14.02.2009 23:15
Ambient conditions: -5°C, transparency 4/5, seeing 4/5, late clouds
Location: Trier, Germany

Equipment:
Telescope: TMB 92 SS f/5.5 with TSFlat
Mount: CGE sefguided with ST-4000XCM
Camera: ST-4000XCM
Filters: IDAS LPS

Acquisition:
Software: CCDSoft V5
FOV, Image scale: 102,8 x 102,8 arcmin, 3,01 arcs/pixel
Sub-exposures: 3h 35min (18 x 10min + 7 x 5min) lights at –35°C
45 darks, 30 EL flats, 50 bias for flats calibration

Processing:
Calibration, stacking, DDP in Images Plus 3.75,
curves and levels adjustments in CS3,
noise reduction with Carbonis Actions,
saturation enhancement with Gabany´s method, green cast eliminaton in Pixinsight LE 1.0,
final sharpening in CS3

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Information

Filename: nebulae/ic434_2009-02-14_full.jpg
Filesize: 2812227 Kb
Download limit: unlimited

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