LBN 643 (HII region)
R/B-band color composite image from the Second Digitized Sky Survey (DSS2), measuring 10 arcminutes across.
From South El Monte , LBN 643 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 04:32, 40° above your north-eastern horizon. At dusk, it will become visible at around 21:17 (PDT), 13° above your northern horizon.
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Name
LBN 643
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Object type
HII region
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Position
| Right ascension: | 02h51m [1] |
| Declination: | +68°52' [1] |
| Constellation: | Cassiopeia |