Barnard 150 (Seahorse Nebula) (Michael Southam)

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

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Barnard 150 (Seahorse Nebula)

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Barnard 150 (Seahorse Nebula)

The Seahorse Nebula, also known as Barnard 150, is a dark nebula located around 1200 light years away in the constelation Cepheus. The Seahorse lies in the plane of the Milkyway filling the frame with stars. The dust in the Seahorse is so thick however that it absorbs all the light that comes from the stars behind it.

It's a little to early in the year to be imaging objects in the Milkyway given how late it rises. I calculated that I could image the Seahorse starting at astronomical twilight even though it was still pretty low in the sky. I ended up imaging the object from 10pm to 1am on both nights of my trip and stacked about 85% of the frames.

I'm not at all happy with the overall processing but it's all a learning experience. I did have some success using Adam Block's star minimization workflow which I found to be very powerful. I only reduced the stars 1 iteration which seemed to be about the limit with the data I had. I very much like the resulting tiny, artefact free pinpoint stars.

Original
Final
B

Skywatcher Esprit ED Super APO Triplet
AstroBin Platform open discussions community forum
Northeast Imagers
Imaged with APT
ZWO ASI 2600MC PRO

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Status	Advanced success
Started	...
Astrometry.net job	5803043
PixInsight job	7L33W4CR0X6CZ1HHRJZKTOQJ80ZCGHXZ
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	20h50m28s.58
RA (top/left)	20h55m09s.98
RA (top/right)	20h56m23s.98
RA (bottom/right)	20h45m29s.67
RA (bottom/left)	20h44m53s.22

Dec (center)	+60°03′59″.9
Dec (top/left)	+59°04′28″.3
Dec (top/right)	+60°58′01″.3
Dec (bottom/right)	+61°03′00″.6
Dec (bottom/left)	+59°09′13″.4

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Barnard 150 (Seahorse Nebula)

Barnard 150 (Seahorse Nebula)

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Barnard 150 (Seahorse Nebula)

Barnard 150 (Seahorse Nebula)

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