Celestial hemisphere:  Northern  ·  Constellation: Cassiopeia (Cas)  ·  Contains:  12 Cas  ·  NGC 103  ·  PK119+00.1  ·  Sh2-172  ·  Sh2-173  ·  The star 12Cas
Sh2-173 Phantom of the Opera Emission Nebula, Jerry Macon
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Sh2-173 Phantom of the Opera Emission Nebula

Sh2-173 Phantom of the Opera Emission Nebula, Jerry Macon
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Sh2-173 Phantom of the Opera Emission Nebula

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Description

Sh2-173 is an emission nebula nicknamed the Phantom of the Opera due to its resemblance to a theatrical ghost mask.  It is located 8800 light years away in the constellation of Cassiopeia.

The nebula shows up reasonably well with just RGB, dimmer and on the pink side.  I have added a little Ha to make it a little more distinct.

My Collections:
Abell Planetary Nebulae (Complete)
Planetary Nebulae
Galaxies
Sharpless 2 Objects

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Sh2-173 Phantom of the Opera Emission Nebula, Jerry Macon