The open cluster NGC 637

Image of NGC 637
Red-band image from the Second Digitized Sky Survey (DSS2), measuring 10 arcminutes across.
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From Cambridge , NGC 637 is visible all night because it is circumpolar. It will be highest in the sky at 04:18, 68° above your northern horizon. At dusk, it will become visible around 20:43 (EDT), 28° above your north-eastern horizon. It will be lost to dawn twilight around 04:50, 67° above your northern horizon.

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Name NGC 637
Object Type Open Cluster
Other Names
Cr 17
Position
Constellation:Cassiopeia
Magnitude:8.20 (V) [3]
8.56 (B) [2]
B-V Color (mag):0.36
Right ascension:01h43m [2]
Declination:+64°02' [2]
Distance:2.5 kpc
8.1 klyr [1]
Derived Quantities
Absolute mag (V):-3.79

Cambridge

Latitude:
Longitude:
Timezone:

42.38°N
71.11°W
EDT

Color scheme