Celestial hemisphere:  Northern  ·  Constellation: Cassiopeia (Cas)  ·  Contains:  15 kap Cas  ·  NGC 133  ·  NGC 136  ·  NGC 146  ·  Sh2-177  ·  The star κCas
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Sh2 172 and Sh2 177 H-Alpha RGB, Jerry Yesavage
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Sh2 172 and Sh2 177 H-Alpha RGB

Getting plate-solving status, please wait...
Sh2 172 and Sh2 177 H-Alpha RGB, Jerry Yesavage
Powered byPixInsight

Sh2 172 and Sh2 177 H-Alpha RGB

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Description

Russeil combines Sh 2-172, Sh 2-173 and Sh 2-177 into one star formation region. All three nebulae lie in the direction of the expanding shell of gas and dust surrounding the Cas OB5 association.

Information from:

http://galaxymap.org/cat/view/sharpless/177

The entire area is covered with H-alpha so to isolate faint individual items is rather hard. If anyone is interested I can put up the raw H-alpha before clipping.

I believe Sh2 172 is the area down and right. The image is centered on Sh2 177.

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