Astronomy:NGC 1664
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Short description: Open cluster in the constellation Auriga
| NGC 1664 | |
|---|---|
 NGC 1664 | |
| Observation data (J2000 epoch) | |
| Constellation | Auriga[1] |
| Right ascension | 04h 51m 06.(0)s[2] |
| Declination | +43° 40′ 3(0)″[2] |
| Distance | 4,200 ± 150 ly (1,289 ± 47 pc)[3] |
| Apparent magnitude (V) | 7.6[1] |
| Apparent dimensions (V) | 18.0′[1] |
| Physical characteristics | |
| Mass | 640[4] M☉ |
| Other designations | C0447+436, Collinder 56, Lund 143, Melotte 27, OCL 411,Raab 19 [5] |
NGC 1664 is an open cluster in the constellation of Auriga. It contains stars with a total of around 640 solar masses with a tidal radius of 43 ly (13.2 pc).[4]
NGC 1664 is a somewhat young cluster, with an age of 675 ± 50 Myr, and is dynamically relaxed.[3] It is located some 4,200 light-years away, or about 1.3 kpc.[3] Born outside of the solar circle, it orbits the center of the Milky Way every 244 million years.[3]
References
- ↑ 1.0 1.1 1.2 O'Meara, Steve (2007), Herschel 400 Observing Guide, Cambridge University Press, p. 22, ISBN 978-0521858939, https://books.google.com/books?id=Nyh9fAC_tpIC&pg=PA22.
- ↑ 2.0 2.1 Wu, Zhen-Yu et al. (November 2009), "The orbits of open clusters in the Galaxy", Monthly Notices of the Royal Astronomical Society 399 (4): 2146–2164, doi:10.1111/j.1365-2966.2009.15416.x, Bibcode: 2009MNRAS.399.2146W.
- ↑ 3.0 3.1 3.2 3.3 Koç, Seliz; Yontan, Talar; Bilir, Selçuk; Canbay, Remziye; Ak, Tansel; Banks, Timothy; Ak, Serap; Paunzen, Ernst (2022). "A Photometric and Astrometric Study of the Open Clusters NGC 1664 and NGC 6939". The Astronomical Journal 163 (4): 191. doi:10.3847/1538-3881/ac58a0. Bibcode: 2022AJ....163..191K.
- ↑ 4.0 4.1 Piskunov, A. E. et al. (January 2008), "Tidal radii and masses of open clusters", Astronomy and Astrophysics 477 (1): 165–172, doi:10.1051/0004-6361:20078525, Bibcode: 2008A&A...477..165P.
- ↑ Rabb, S. (1922), "Research on open clusters", Meddelanden Fran Lunds Astronomiska Observatorium Series II 28: 3–48, Bibcode: 1922MeLuS..28....3R.
External links
- NGC 1664[yes|permanent dead link|dead link}}]
- NGC 1664
- Image NGC 1664
- NGC 1664 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
Coordinates: 
04h 51m 07.1s, +43° 40′ 33″
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