Celestial hemisphere:  Northern  ·  Constellation: Cassiopeia (Cas)  ·  Contains:  NGC 7510  ·  PK110-00.1  ·  PK110-01.1  ·  Sh2-157
SH2-157 The Lobster Claw HaSHO, Jonathan Young
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SH2-157 The Lobster Claw HaSHO

SH2-157 The Lobster Claw HaSHO, Jonathan Young
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SH2-157 The Lobster Claw HaSHO

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Description

Sh2-157 over four difficult nights.   A large but dim companion to the bubble nebula in Cassiopeia.   Also take note of the small planetary nebula in the lower right.

180x360 total subs over four partly cloudy, smokey and humid nights culled to 107 due to many issues.
62x360 Ha
23x360 S2
22x360 O3
Stacked in Siril with background extraction, 64 darks and flats.
Each channel stretches in Startools
combined at 50-50 HS, 30-30-40 SHO, 50-50 HO.  Touch up in Lightroom.

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