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NGC 189 is an open cluster in the Cassiopeia constellation. It was discovered by Caroline Herschel on 27 September 1783, and independently rediscovered by John Herschel on 27 October 1829.[3]
References
- ^ a b c d e Kharchenko, N. V.; et al. (2013). "Global survey of star clusters in the Milky Way. II. The catalogue of basic parameters". Astronomy & Astrophysics. 558: A53. arXiv:1308.5822. Bibcode:2013A&A...558A..53K. doi:10.1051/0004-6361/201322302. S2CID 118548517.
- ^ "NGC 189". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 12 February 2021.
- ^ Seligman, Courtney. "New General Catalogue objects: NGC 150 – 199". cseligman.com. Retrieved 12 February 2021.
External links
- NGC 189 @ SEDS NGC objects pages
- NGC 189[permanent dead link] at NightSkyInfo.com
- NGC 189 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
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