NGC 225

NGC 225 is an open cluster in the constellation Cassiopeia. It is located roughly 2100 light-years from Earth.

NGC 225
NGC 225 in Cassiopeia
Observation data (J2000 epoch)
Constellation	Cassiopeia[1]
Right ascension	00^h 43.7^m [2]
Declination	+61° 47′[2]
Distance	2143 ly[3] (657 pc)
Apparent magnitude (V)	7.0[2]
Apparent dimensions (V)	12 arcminute
Physical characteristics
Notable features	Image
Other designations	Cr 7, C 0040+615

See also

• Open cluster
• List of NGC objects (1–1000)
• Cassiopeia (constellation)

References

1. 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.
2. "NGC 225". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2006-05-29.
3. An object's distance from Earth can be determined using Hubble's law: v=H_o is Hubble's constant (70±5 (km/s)/Mpc). The relative uncertainty Δd/d divided by the distance is equal to the sum of the relative uncertainties of the velocity and v=H_o

External links

• Media related to NGC 225 at Wikimedia Commons
• NGC 225 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
• SEDS