The Lobster Claw Nebula (Sharpless 157)
R/B-band color composite image from the Second Digitized Sky Survey (DSS2), measuring 90 arcminutes across.
From South El Monte , the Lobster Claw Nebula is visible all night. It will become visible at around 19:59 (PDT), 39° above your north-eastern horizon, as dusk fades to darkness. It will be lost to dawn twilight at around 05:32, 36° above your north-western horizon.
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Name
The Lobster Claw Nebula (Sharpless 157)
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Object type
HII region
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Position
| Right ascension: | 23h16m [1] |
| Declination: | +60°02' [1] |
| Constellation: | Cassiopeia |