The open cluster M 103

Image of M 103
Red-band image from the Second Digitized Sky Survey (DSS2), measuring 10 arcminutes across.
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From Washington , M 103 is visible in the morning sky, becoming accessible around 21:34, when it rises 21° above your north-eastern horizon. It will then reach its highest point in the sky at 05:09, 66° above your northern horizon. It will be lost to dawn twilight around 05:49, 65° above your northern horizon.

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Name M 103
Object Type Open Cluster
Other Names
NGC 581
Cr 14
Mel 8
Magnitude:7.40 (V) [3]
7.72 (B) [2]
B-V Color (mag):0.32
Right ascension:01h33m [2]
Declination:+60°39' [2]
Distance:2.2 kpc
7.2 klyr [1]
Derived Quantities
Absolute mag (V):-4.31




Color scheme