Sh 2-157, the Lobster Claw (astrovienna)

Celestial hemisphere: Northern · Constellation: Cepheus (Cep) · Contains: HD219286 · HD219287 · HD219854 · HD240248 · HD240250 · HD240256 · LBN 533 · LBN 536 · LBN 537 · LBN 540 · LBN 544 · NGC 7510 · Sh2-157

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Sh 2-157, the Lobster Claw

Link: https://pbase.com/image/174077451

Powered byPixInsight

Sh 2-157, the Lobster Claw

Link: https://pbase.com/image/174077451

Sh 2-157 is an emission nebula located about 11,000 (some sources say 8000) light years away. The nebula is illuminated by the Wolf Rayet star WR 157, a member of the small cluster Basel 3, located just below the bright blue arc of the upper “pincer.” Other stars also light this area, including stars in the bright region at the left of the end of the upper “pincer” of the claw. That region is very bright and is often blown out in images of this object, but I kept it toned down to bring out the detail in that area. The small cluster at lower right is NGC 7510, located about 9900 light years away. At lower left, the oval-shaped object with a dark streak through it is cataloged as We 1-12, a planetary nebula, but it only shows in the Ha and SII images, not in OIII, so I doubt it’s actually a planetary. It's listed in the HASH PN database without any commentary. It's not listed at all in SIMBAD or NED.

NOVAC

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Status	Advanced success
Started	...
Astrometry.net job	8754662
PixInsight job	9E4PK1RF8AREHESUYJZ0E7CF62XMRVT2
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	23h14m52s.260
RA (top/left)	23h19m20s.137
RA (top/right)	23h19m32s.490
RA (bottom/right)	23h10m10s.180
RA (bottom/left)	23h10m25s.828

Dec (center)	+60°10′29″.80
Dec (top/left)	+59°19′25″.93
Dec (top/right)	+61°01′05″.15
Dec (bottom/right)	+61°00′56″.45
Dec (bottom/left)	+59°19′17″.93

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Sh 2-157, the Lobster Claw

Sh 2-157, the Lobster Claw

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Sh 2-157, the Lobster Claw

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