NGC 189 explained
| NGC 189 |
| Epoch: | J2000 |
| Ra: | [1] |
| Dec: | + |
| Appmag V: | 8.8[2] |
| Size V: | 0.120° |
| Age: | 510 Myr |
| Constellation: | Cassiopeia |
| Names: | Cr 462, C 0036+608, OCL 301 |
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 orbits the Milky Way on a nearly circular orbit with an eccentricity of 0.053 and an orbital period of 231,000 years. It enters the solar circle at parts of its orbit, and is part of the thin disk of the Milky Way.[4]
External links
Notes and References
- 1. Kharchenko. N. V.. Piskunov. A. E.. Schilbach. E.. Röser. S.. Scholz. R.-D.. Global survey of star clusters in the Milky Way. II. The catalogue of basic parameters. Astronomy & Astrophysics. 558. A53. 2013. 2013A&A...558A..53K. 10.1051/0004-6361/201322302. 1308.5822. 118548517.
- NGC 189. 2021-02-12.
- Web site: New General Catalogue objects: NGC 150 – 199. Seligman, Courtney. cseligman.com. 2021-02-12.
- 10.1016/j.asr.2023.04.015 . CCD UBV and Gaia DR3 based analysis of NGC 189, NGC 1758 and NGC 7762 open clusters . 2023 . Yontan . Talar . Bilir . Selçuk . Çakmak . Hikmet . Raúl . Michel . Banks . Timothy . Soydugan . Esin . Canbay . Remziye . Taşdemir . Seval . Advances in Space Research . 72 . 4 . 1454–1473 . 2304.04294 . 2023AdSpR..72.1454Y .
