Hellenica World

Messier 103

M103. "Atlas Image [or Atlas Image mosaic] obtained as part of the Two Micron All Sky Survey (2MASS), a joint project of the University of Massachusetts and the Infrared Processing and Analysis Center/California Institute of Technology, funded by the National Aeronautics and Space Administration and the National Science Foundation."

NGC 581
Observation data (J2000.0 epoch)
Right ascension 01h 33.2m
Declination +60° 42′
Distance 8.5 kly ()
Apparent magnitude (V) 7.4
Apparent dimensions (V) 6.0'
Other designations M103
See also: Open cluster, List of open clusters

Messier 103 (also known as M103, or NGC 581) is an open cluster in the constellation Cassiopeia. It was discovered by Pierre Méchain in 1781 . M103 is at a distance of about 8,000 light-years from Earth .

Links

* Open Cluster M103 @ SEDS Messier pages

* Open Cluster M103 @ Skyhound.com




Messier 18

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