NGC 9 is a spiral galaxy about 140 million light-years away in the Pegasus constellation. It was discovered on 27 September 1865 by Otto Wilhelm von Struve.[3]
One supernova has been observed in NGC 9: SN 2021zju (type Ib, mag. 18.15).[4]
References
- ^ a b c d e f g h i "NED results for object NGC 0009". National Aeronautics and Space Administration / Infrared Processing and Analysis Center. 2008. Retrieved 24 November 2008.
- ^ "Distance Results for NGC 0009". NASA/IPAC Extragalactic Database. Retrieved 3 May 2010.
- ^ Steinicke, Wolfgang (2010). Observing and Cataloguing Nebulae and Star Clusters. Cambridge University Press. p. 283. ISBN 9780521192675.
- ^ "SN 2021zju". Transient Name Server. IAU. Retrieved 3 September 2024.
External links
Media related to NGC 9 at Wikimedia Commons- NGC 9 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
