Misplaced Pages

NGC 2509

Article snapshot taken from Wikipedia with creative commons attribution-sharealike license. Give it a read and then ask your questions in the chat. We can research this topic together.
Open cluster in the constellation Puppis
NGC 2509
DSS image of NGC 2509
Observation data (J2000 epoch)
Right ascension08 00 48
Declination−19° 03′ 06″
Distance9,500 ly (2,900 pc)
Apparent magnitude (V)9.3
Apparent dimensions (V)2.5 ± 0.5′
Physical characteristics
Estimated age1,200 Myr
Other designationsNGC 2509, Cr 171, Mel 81, OCl 630
Associations
ConstellationPuppis
See also: Open cluster, List of open clusters

NGC 2509 is an open cluster in the constellation of Puppis. It was discovered on 3 December 1783 by William Herschel. It was described as "bright, pretty rich, slightly compressed" by John Louis Emil Dreyer, the compiler of the New General Catalogue.

The cluster is about 14 light-years (4.2 parsecs) wide, but the cluster's other parameters remain poorly known. Some studies have estimated a distance of about 9,500 light-years (2,900 parsecs) away from the Solar System, while older estimates put it at only 2980 light-years (912 parsecs) away. Estimates of the cluster's age have also varied significantly, from 1.2 billion years old to 8 billion years old. The latest analysis based on the parallaxes measured by the Gaia spacecraft confirms that it is a relatively distant object, with a distance between 2500 and 3000 parsecs.

References

  1. ^ Carraro, G.; Costa, E. (2007). "Photometry of the five marginally studied open clusters Collinder 74, Berkeley 27, Haffner 8, NGC 2509, and VdB-Hagen 4". Astronomy & Astrophysics. 464 (2): 573. arXiv:astro-ph/0611705. Bibcode:2007A&A...464..573C. doi:10.1051/0004-6361:20066350. S2CID 1419651.
  2. ^ "NGC 2509". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 9 August 2017.
  3. ^ "New General Catalog Objects: NGC 2500 - 2549". cseligman.com. Retrieved 9 August 2017.
  4. ^ Sujatha, S.; Babu, G. S. D. (2003). "Study of open cluster NGC 2509". Bulletin of the Astronomical Society of India. 31: 9–18. Bibcode:2003BASI...31....9S.
  5. Cantat-Gaudin, T.; Jordi, C.; Vallenari, A.; et al. (2018). "A Gaia DR2 view of the open cluster population in the Milky Way". Astronomy & Astrophysics. 618: A93. arXiv:1805.08726. Bibcode:2018A&A...618A..93C. doi:10.1051/0004-6361/201833476. S2CID 56245426.
Astronomical catalogs
NGC
Collinder
New General Catalogue 2500 to 2999


Stub icon

This star cluster–related article is a stub. You can help Misplaced Pages by expanding it.

Categories:
NGC 2509 Add topic