Sh2-176 (Peter Goodhew)

Celestial hemisphere: Northern · Constellation: Cassiopeia (Cas) · Contains: HD236445 · HD2907 · LBN 597 · PGC 136928 · PGC 136994 · PGC 136995 · PGC 136998 · PGC 2796345 · PGC 2796347 · PGC 2796352 · PGC 2796359 · PGC 2796360 · PGC 2796368 · PK120-05.1 · Sh2-176

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Sh2-176

Link: https://www.imagingdeepspace.com/sh2-176.html

Powered byPixInsight

Sh2-176

Link: https://www.imagingdeepspace.com/sh2-176.html

Sh2-176 is a faint planetary nebula in Cassiopeia. It has a surface brightness of 15.5 mag/arc-sec2 and a hydrogen-rich central star. It was discovered to be a planetary nebula by Sabbadin et al in 1977. It is approximately 490 light-years away with estimates for its age ranging from 24,000 to over 180,000 years old based on the computed kinematics (expansion rate and nebular diameter). Expanding at 19 km/sec, Sh2-176 has been estimated to span 3.1 to over 22.8 light-years across depending on the source. Its asymmetricity is believed to be the result of bow shocks involving the interstellar medium and the planetary nebula itself where, the brighter portion of the nebula represents the interaction of the nebula meeting up against the interstellar medium as it moves through space. The central star associated with Sh2-176 is a blue subdwarf with a magnitude of 18.74.

Sharpless2 Objects
Planetary Nebulae
Entre Encinas y Estrellas (e-EyE)

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Status	Advanced success
Started	...
Astrometry.net job	6118577
PixInsight job	3HXFR1WYAOEV250KDD4LINT5WJQ95PA2
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	00h31m48s.670
RA (top/left)	00h34m05s.832
RA (top/right)	00h29m32s.163
RA (bottom/right)	00h29m31s.701
RA (bottom/left)	00h34m02s.389

Dec (center)	+57°22′58″.40
Dec (top/left)	+57°34′43″.30
Dec (top/right)	+57°35′09″.82
Dec (bottom/right)	+57°11′02″.80
Dec (bottom/left)	+57°10′35″.58

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