SH2-163 (Pedro Sánchez)

Celestial hemisphere: Northern · Constellation: Cassiopeia (Cas) · Contains: HD221038 · HD221039 · HD221143 · HD221406 · HD221438 · HD221639 · HD221670 · HD221671 · HD221741 · HD221900 · HD221935 · HD240344 · LBN 557 · LDN 1245 · Sh2-163 · Sh2-164

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SH2-163

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SH2-163

It is an H II region in a very advanced phase of its evolution; in the visible light band it appears as a nebula with a low surface brightness, surrounded, especially on the northwest side, by a dark dust lane. One of the stars responsible for the ionization of the gases of the nebula could be LSI+60°8, a massive star of spectral class O 9.5, located outside the cloud itself; the hottest stars in the H II region and responsible for its ionization would, however, be completely enveloped in gas. The distance of the cloud, equal to 12,500 light-years indicates that it is located in the outer part of the Perseus Arm, in the same region of the OB Cassiopeia OB2 association and that of Sh2-157 .

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	Distinct awarded users	Total awarded images
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Other
Unknown

The “AstroBin Image of the Day and Top Picks”, or IOTD/TP, is a long-running system to promote beautiful, interesting, peculiar, or otherwise amazing astrophotographs, with a focus on technical excellence. Learn more.

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Status	Advanced success
Started	...
Astrometry.net job	6277225
PixInsight job	3CKYKG5MX28F0BUQ397C1CURFAAXZJ4O
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	23h33m22s.82
RA (top/left)	23h40m25s.10
RA (top/right)	23h26m25s.75
RA (bottom/right)	23h26m42s.55
RA (bottom/left)	23h39m59s.25

Dec (center)	+60°46′54″.7
Dec (top/left)	+61°35′51″.8
Dec (top/right)	+61°36′26″.4
Dec (bottom/right)	+59°56′39″.7
Dec (bottom/left)	+59°56′03″.9

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SH2-163

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