Messier 73
Asterism of four stars in the constellation Aquarius / From Wikipedia, the free encyclopedia
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Messier 73 (M73, also known as NGC 6994) is an asterism of four stars in the constellation Aquarius. It lies several arcminutes east of globular cluster M72. According to Gaia EDR3, the stars are 1030±9, 1249±10, 2170±22, and 2290±24 light-years from the Sun, with the second being a binary star.[3]
Quick Facts Observation data (J2000 epoch), Right ascension ...
Messier 73 | |
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Observation data (J2000 epoch) | |
Right ascension | 20h 58m 54s[1] [2] |
Declination | −12° 38′[1][2] |
Distance | Mean distance star approx. 2,500 ly[2] (approx. 770 pc) |
Apparent magnitude (V) | 9.0[1][2] |
Apparent dimensions (V) | 2.8′[2] |
Physical characteristics | |
Radius | ly |
Estimated age | million yrs[citation needed] |
Other designations | M 73, NGC 6994,[1][2] Cr 426 |
Associations | |
Constellation | Aquarius |
See also: Open cluster, List of open clusters |
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