NGC 2439

NGC 2439
NGC 2439 (taken from Stellarium)
Observation data (J2000 epoch)
Constellation	Puppis
Right ascension	07^h 40.8^m^[1]
Declination	−31° 41′^[1]
Distance	3.855 kpc (12.57 kly)^[2]
Apparent magnitude (V)	6.9^[1]
Apparent dimensions (V)	10″^[3]
Physical characteristics
Other designations	C 0738-315^[1]

Map showing the location of NGC 2439

NGC 2439 is an open cluster of stars in the constellation Puppis. It has an apparent magnitude of 6.9, an angular size of 10 arcminutes and is visible using a small telescope.^[3] This cluster is about 3.855 kpc from the Solar System and has an age of about 10 million years.^[2]^[4] Observationally, this cluster is along the line of sight of two groups of B-type supergiant stars. The nearer group is located at a distance of 1.03 kpc, while the second group is at 3.2 kpc.^[5]

References

1 2 3 4 "NGC 2439 -- Open (galactic) Cluster". SIMBAD. Centre de Données astronomiques de Strasbourg. Retrieved 2011-04-07.
1 2 Piskunov, A. E.; Schilbach, E.; Kharchenko, N. V.; Röser, S.; 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. See online data.
1 2 Bakich, Michael E. (2010). 1001 Celestial Wonders to See Before You Die: The Best Sky Objects for Star Gazers. Patrick Moore's Practical Astronomy Series. Springer. p. 29. ISBN 1-4419-1776-4.
↑ Dias W.S.; Alessi B.S.; Moitinho A.; Lepine J.R.D. (July 2002). "New catalog of optically visible open clusters and candidates". Astronomy and Astrophysics. 389 (3): 871–873. arXiv:astro-ph/0203351. Bibcode:2002A&A...389..871D. doi:10.1051/0004-6361:20020668. Note: see the VizieR catalogue B/ocl.
↑ Kaltcheva, N. T.; Hilditch, R. W. (March 2000). "The distribution of bright OB stars in the Canis Major-Puppis-Vela region of the Milky Way". Monthly Notices of the Royal Astronomical Society. 312 (4): 753–768. Bibcode:2000MNRAS.312..753K. doi:10.1046/j.1365-8711.2000.03170.x.

New General Catalogue 2000 to 2499

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Astronomical catalog List of NGC objects

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