NGC 7243 | |
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Observation data (2000.0 epoch) | |
Right ascension | 22h 15m 08.6s |
Declination | +49° 53′ 51″ |
Distance | 2800 (860) |
Apparent magnitude (V) | +6.4 |
Apparent dimensions (V) | 21′ |
Physical characteristics | |
Other designations | Caldwell 16, Cr 448 |
Associations | |
Constellation | Lacerta |
NGC 7243 (also known as Caldwell 16) is an open cluster and Caldwell object in the constellation Lacerta. It shines at magnitude +6.4. Its celestial coordinates are RA 22h 15.3m , dec +49° 53′. It is located near the naked-eye stars Alpha Lacertae, 4 Lacertae, an A-class double star, and planetary nebula IC 5217. It lies approximately 2,800 light-years away, and is thought to be just over 100 million years old, consisting mainly of white and blue stars.[1]