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]
| NGC 189 | |
|---|---|
 NGC 189 from DSS | |
| Observation data (J2000 epoch) | |
| Right ascension | 0h 39m 28.8s[1] |
| Declination | +61° 6m 54s[1] |
| Distance | 4,200 ly (1,300 pc)[1] |
| Apparent magnitude (V) | 8.8[2] |
| Apparent dimensions (V) | 0.120°[1] |
| Physical characteristics | |
| Estimated age | 510 Myr[1] |
| Other designations | Cr 462, C 0036+608, OCL 301 |
| Associations | |
| Constellation | Cassiopeia |
References edit
- ^ 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 edit
- 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