NGC 7243

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NGC 7243
NGC 7243 .jpg
NGC 7243
Observation data (2000.0 epoch)
ConstellationLacerta
Right ascension22h 15m 08.6s
Declination+49° 53′ 51″
Distance2800 (860)
Apparent magnitude (V)+6.4
Apparent dimensions (V)21′
Physical characteristics
Other designationsCaldwell 16
See also: Open cluster, List of open clusters

NGC 7243, also 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]

Map showing location of NGC 7243

Notes[edit]

  1. ^ "NGC 7243". eSky. Retrieved 2008-08-06.

References[edit]

  • Pasachoff, Jay M. (2000). "Atlas of the Sky". Stars and Planets. New York, NY: Peterson Field Guides. p. 578. ISBN 0-395-93432-X.
  • Caldwell-Moore, Sir Patrick (2003). Firefly Atlas of the Universe. Firefly Books Limited. ISBN 1-55297-819-2.

External links[edit]

Coordinates: Sky map 22h 15m 08.6s, +49° 53′ 51″