NGC 1664

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NGC 1664
NGC 1664
Observation data (J2000 epoch)
Right ascension 04h 51m 06.(0)s[2]
Declination+43° 40′ 3(0)″[2]
Distance3,910 ly (1,199 pc)[3]
Apparent magnitude (V)7.6[1]
Apparent dimensions (V)18.0′[1]
Physical characteristics
Mass640[4] M
Other designationsC0447+436, Collinder 56, Lund 143, Melotte 27, OCL 411, Raab 19
See also: Open cluster, List of open clusters
Map showing the location of NGC 1664

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]


  1. ^ a b c O'Meara, Steve (2007), Herschel 400 Observing Guide, Cambridge University Press, p. 22, ISBN 978-0521858939.
  2. ^ a b 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, arXiv:0909.3737, Bibcode:2009MNRAS.399.2146W, doi:10.1111/j.1365-2966.2009.15416.x.
  3. ^ Kharchenko, N. V.; et al. (August 2005). "Astrophysical parameters of Galactic open clusters". Astronomy and Astrophysics. 438 (3): 1163–1173. arXiv:astro-ph/0501674. Bibcode:2005A&A...438.1163K. doi:10.1051/0004-6361:20042523.
  4. ^ a b Piskunov, A. E.; et al. (January 2008), "Tidal radii and masses of open clusters", Astronomy and Astrophysics, 477 (1): 165–172, Bibcode:2008A&A...477..165P, doi:10.1051/0004-6361:20078525.

External links[edit]

Coordinates: Sky map 04h 51m 07.1s, +43° 40′ 33″