LBN 540 (HII region)
R/B-band color composite image from the Second Digitized Sky Survey (DSS2), measuring 60 arcminutes across.
From Cambridge , LBN 540 is visible all night because it is circumpolar. It will be highest in the sky shortly before dawn, when it will be lost to twilight at around 03:56, 71° above your northern horizon. At dusk, it will become visible at around 21:41 (EDT), 32° above your north-eastern horizon.
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Name
LBN 540
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Object type
HII region
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Position
| Right ascension: | 23h16m [1] |
| Declination: | +60°16' [1] |
| Constellation: | Cassiopeia |