NGC 1999 DSW in LRGB (Ben Koltenbah)

Celestial hemisphere: Southern · Constellation: Orion (Ori) · Contains: LBN 979 · NGC 1999

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NGC 1999 DSW in LRGB

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NGC 1999 DSW in LRGB

This is NGC 1999 from DSW RCOS data taken in November through December 2017 in Orion. It is located 1,500ly distant. It is a bright reflection nebula due to V380 Orionis, a variable star. The dark triangular region in the middle is particularly dark nebula in the middle of the otherwise bright nebula. Interestingly, it has been determined that this is actually a particularly empty space as opposed to a particularly dense dusty region.

The image is composed of LRGB. This was an interesting choice on the part of DSW as opposed to NB imaging. As a result, my color calibration turned out to be largely a deep bloody red color with some bits of blue above the brightest core region of the nebula. I did use PhotometricColorCalibration in PI, so the coloring is supposedly based on scientific-based calibration. The stars are quite saturated and only show some measure of coloring in their halos. Should I attempt to process this again I will make more effort on dimming the stars so that they are not so dominant in the image. Still I am impressed by the level of detail that came out of the nebula. I applied HDRMT in order to bring out more of the brightest region surrounding the dark region.

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Description: Synthetic L Channel Image

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Description: Inverted Synthetic L Image

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Description: Annotated L Image

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Status	Advanced success
Started	...
Astrometry.net job	2043417
PixInsight job	BGNDJWLU98BCT2RIZL004XA4C6Y3ML5W
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	05h36m12s.60
RA (top/left)	05h37m02s.83
RA (top/right)	05h34m41s.25
RA (bottom/right)	05h35m21s.21
RA (bottom/left)	05h37m42s.91

Dec (center)	-06°39′09″.4
Dec (top/left)	-06°16′52″.6
Dec (top/right)	-06°27′02″.9
Dec (bottom/right)	-07°01′25″.8
Dec (bottom/left)	-06°51′14″.9

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NGC 1999 DSW in LRGB

NGC 1999 DSW in LRGB

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NGC 1999 DSW in LRGB

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