Sh2 158 H-Alpha RGB (Star Forming Region Enhanced in Gif) (Jerry Yesavage)

Celestial hemisphere: Northern · Constellation: Cepheus (Cep) · Contains: NGC 7510 · NGC 7538 · Sh2-158 · Sh2-159 · Sh2-161

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Sh2 158 H-Alpha RGB (Star Forming Region Enhanced in Gif)

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Sh2 158 H-Alpha RGB (Star Forming Region Enhanced in Gif)

Color enhanced overview with H-alpha in one frame then close-up of star forming region in stretch H-alpha alone. Edge of Lobster Claw on the right.

From the compendium of Sharpless2 objects:

http://galaxymap.org/cat/list/sharpless/151

This is NGC 7538, a major star formation region in the Cas OB2 association. It is surrounded by the much larger diffuse nebula Sh 2-161B.

The main ionising star for this nebula is the O7 V star [WBN74] NGC 7538 IRS 6, but it includes several other O-stars as well.

Avedisova places Sh 2-158 in star formation region 111.54+0.82 with 101 components including 15 masers and the young stellar object NGC 7538 IRS 9.

Russeil combines Sh 2-158 and Sh 2-159 into one star formation region. You can see the two nebulae embedded in the 595 thousand solar mass dust cloud [UUT2000] Cloud G in this MSX infrared image.

Original
Final
B

Cloudy Nights
SF Bay Area Imagers
Narrowband imaging
Sharpless2 Objects
Planetary Nebulae

Sharpless2 Objects

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Status	Advanced success
Started	...
Astrometry.net job	1356607
PixInsight job	Q72X2IRS5Y3J6XHLT93QX5JO0VW32RDA
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	23h13m30s.49
RA (top/left)	23h07m30s.67
RA (top/right)	23h07m51s.26
RA (bottom/right)	23h19m08s.98
RA (bottom/left)	23h19m31s.41

Dec (center)	+61°29′27″.7
Dec (top/left)	+62°28′00″.7
Dec (top/right)	+60°29′59″.9
Dec (bottom/right)	+60°29′59″.9
Dec (bottom/left)	+62°27′57″.6

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Sh2 158 H-Alpha RGB (Star Forming Region Enhanced in Gif)

Sh2 158 H-Alpha RGB (Star Forming Region Enhanced in Gif)

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Sh2 158 H-Alpha RGB (Star Forming Region Enhanced in Gif)

Sh2 158 H-Alpha RGB (Star Forming Region Enhanced in Gif)

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