Lobster Claw Nebula Ha+ OSC Limited (SH2-157) (Brandon Tackett)

Celestial hemisphere: Northern · Constellation: Cassiopeia (Cas) · Contains: 2 Cas · Bubble Nebula · LBN 533 · LBN 536 · LBN 537 · LBN 540 · LBN 543 · LBN 544 · LBN 548 · LBN 549 · LDN 1231 · NGC 7510 · NGC 7635 · PK110-00.1 · PK110-01.1 · Sh2-157 · Sh2-159 · Sh2-162 · The star 2Cas

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Lobster Claw Nebula Ha+ OSC Limited (SH2-157)

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Lobster Claw Nebula Ha+ OSC Limited (SH2-157)

This was an attempt to see how much OSC color data could compare to Ha data. You can compared the initial stretched color data without any edits and how overwhelming the Milky Way star field appears compared to the Ha stretched version.

I really need to add 40-60 5 min subs to the Ha version to get a more desirable SNR. Initially, I was quite disappointed in how the image came together, but then when I looked through astrobin, there are only a scant number of RGB images of the nebula, the vast majority of the images are version of SHO Hubble palette or strong borderline NB light polution multiband pass filters. After looking at all of these images, I appreciated the difficulty of this object in Ha-OSC combo. Still more work to be done.

The Lobster claw nebula is a hydrogen emission nebula in the constellation of Cassiopeia approximately 11,000 light years from earth. The Also in field the more famous bubble nebula in the upper right.

Original
B
C
Final
D

B

Description: Ha

Uploaded: ...

C

Description: OSC with way too long of exposure being in the milky way

Uploaded: ...

D

Description: Increase Red Color Saturation

Uploaded: ...

Central USA
N.I.N.A. Users

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Status	Advanced success
Started	...
Astrometry.net job	4193133
PixInsight job	9VWHOP3TUKAHBMQ3YSBKODLQ20R2E2NJ
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	23h16m13s.50
RA (top/left)	23h22m55s.66
RA (top/right)	23h23m28s.59
RA (bottom/right)	23h09m00s.19
RA (bottom/left)	23h09m28s.18

Dec (center)	+60°15′42″.8
Dec (top/left)	+59°04′38″.5
Dec (top/right)	+61°25′20″.10
Dec (bottom/right)	+61°25′29″.2
Dec (bottom/left)	+59°04′40″.0

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Lobster Claw Nebula Ha+ OSC Limited (SH2-157)

Lobster Claw Nebula Ha+ OSC Limited (SH2-157)

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Lobster Claw Nebula Ha+ OSC Limited (SH2-157)

Lobster Claw Nebula Ha+ OSC Limited (SH2-157)

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D

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