NGC 225

NGC 225
NGC 225 in Cassiopeia
Observation data (J2000 epoch)
Right ascension00h 43.7m
Declination+61° 47′
Distance2200 ly (676 pc)
Apparent magnitude (V)7.0
Apparent dimensions (V)15′
Physical characteristics
Image
Other designationsCr 7, C 0040+615
Associations
ConstellationCassiopeia
See also: Open cluster, List of open clusters

NGC 225 is an open cluster in the constellation Cassiopeia. It is located roughly 2,200 light-years from Earth. It is about 100 to 150 million years old.

The binary fraction, or the fraction of stars that are multiple stars, is 0.52.

See also

References

  1. 1 2 "NGC 225". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2006-05-29.
  2. 1 2 3 Yalyalieva, L.; Carraro, G.; Glushkova, E.; Munari, U.; Ochner, P. (2022). "The young Galactic cluster NGC 225: Binary stars' content and total mass estimate". Monthly Notices of the Royal Astronomical Society. arXiv:2204.12558. doi:10.1093/mnras/stac1199.
  3. 1 2 3 Finlay, Warren H. (2014). Concise Catalogue of Deep-Sky Objects. The Patrick Moore Practical Astronomy Series (2nd ed.). Springer Cham. p. 149. doi:10.1007/978-3-319-03170-5. ISBN 978-3-319-03169-9.
  4. ↑ R. W. Sinnott, ed. (1988). The Complete New General Catalogue and Index Catalogue of Nebulae and Star Clusters by J. L. E. Dreyer. Sky Publishing Corporation and Cambridge University Press. ISBN 978-0-933346-51-2.