Hellenica World

Messier 93

M93 "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."

Messier 93
Observation data (J2000.0 epoch)
Right ascension 07h 44.6m
Declination −23° 52′
Distance 3.6 kly (1.1 kpc)
Apparent magnitude (V) 6.0
Apparent dimensions (V) 22.0′
Other designations NGC 2447
See also: Open cluster, List of open clusters

Messier 93 (also known as M 93 or NGC 2447) is an open cluster in the constellation Puppis. It was discovered by Charles Messier in 1781.

M93 is at a distance of about 3,600 light years from Earth and has a spatial radius of some 10 to 12 light years. Its age is estimated at some 100 million years.


* Open Cluster M93 @ SEDS Messier pages

Messier 18

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