Barnard 150 - The Dark Seahorse Nebula (Joshua Kovach)

Celestial hemisphere: Northern · Constellation: Cepheus (Cep) · Contains: B148 · B149 · B150 · HD198300 · HD198662 · HD199306 · LDN 1076 · LDN 1082

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Barnard 150 - The Dark Seahorse Nebula

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Barnard 150 - The Dark Seahorse Nebula

This is one of the most difficult targets that I've worked on since I started this 3 years ago. I've started over processing this one at leat 15 times, quadrupled my initial integration time, and have just been struggling like crazy to get a decent result.

That being said, I'm finally proud to present Barnard 150, aka the Seahorse Nebula. This is a dark nebula in the constellation Cepheus (looks like an upside down house that points at Polaris). A dark nebula (absorption nebula), is a dense interstellar cloud that obscures the light from objects behind it, such as background stars and emission or reflection nebulae. Interstellar dust grains located in the coldest, densest parts of larger molecular clouds cause light extinction.

Of the 40+ hours of captured data between 8/15 and 8/28, I was able to use and stack just over 23.5hrs of them to produce this final stacked image. The amount of bright dust surrounding the dark nebula makes it incredibly difficult to process, bringing out the contrast without destroying the data.

WO Redcat 51 Group
Dark Nebula
AstroWorld TV
Grand Rapids Amateur Astronomical Association

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Status	Advanced success
Started	...
Astrometry.net job	8387884
PixInsight job	R9AQ4MRLN2RT76GWG1LZV1QHL8XO4PYG
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	20h50m03s.32
RA (top/left)	20h56m24s.38
RA (top/right)	20h56m17s.93
RA (bottom/right)	20h43m13s.62
RA (bottom/left)	20h44m15s.11

Dec (center)	+60°01′12″.4
Dec (top/left)	+58°51′26″.5
Dec (top/right)	+61°12′43″.0
Dec (bottom/right)	+61°09′50″.2
Dec (bottom/left)	+58°48′42″.9

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Barnard 150 - The Dark Seahorse Nebula

Barnard 150 - The Dark Seahorse Nebula

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Barnard 150 - The Dark Seahorse Nebula

Barnard 150 - The Dark Seahorse Nebula

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