NGC 2281
| NGC 2281 | |
|---|---|
 NGC 2281 (taken from Stellarium) Credit: Roberto Mura | |
| Observation data (J2000 epoch) | |
| Right ascension | 06h 48m 17.(0)s[1] |
| Declination | +41° 04′ 4(2)″[1] |
| Distance | 1,820 ly (558 pc)[2] |
| Apparent magnitude (V) | 5.4[3] |
| Apparent dimensions (V) | 25′[3] |
| Physical characteristics | |
| Estimated age | 610[4] million |
| Other designations | C0645+411, Collinder 116, Melotte 51, OCL-446 |
| Associations | |
| Constellation | Auriga |
NGC 2281 is an open cluster in the constellation Auriga. NGC 2281 is a medium sized, well detached, but poor open cluster in Auriga. It is visible in the 35mm Panoptic but the optimum magnification is achieved with the 17mm Nagler (94x). The stars are arranged in several small groupings and asterisms. The cluster has no central star. The different clumps of stars are arranged in a more or less crooked line starting in the north, with a bright yellow-orange star, going south and then bend of to the east. There are dark areas, and there is no glow visible from unresolved stars or any other nebulosity.[citation needed]
References
- ^ 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.
- ^ 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.
- ^ a b O'Meara, Steve (2007), Herschel 400 Observing Guide, Cambridge University Press, pp. 25−26, ISBN 0521858933.
- ^ Kharchenko, N. V.; et al. (2013), "Global survey of star clusters in the Milky Way. II. The catalogue of basic parameters", Astronomy & Astrophysics, 558: A53, arXiv:1308.5822, Bibcode:2013A&A...558A..53K, doi:10.1051/0004-6361/201322302.
External links
- Simbad
- Image NGC 2281
- NGC 2281
- [1]
- NGC 2281 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
- Dias, W. S.; Alessi, B. S.; Moitinho, A.; Lépine, J. R. D. (2002). "New catalogue of optically visible open clusters and candidates". Astronomy & Astrophysics. 389 (3): 871–873. arXiv:astro-ph/0203351. Bibcode:2002A&A...389..871D. doi:10.1051/0004-6361:20020668.
- Vasilevskis, S.; Balz, A. G. A. (1959). "Relative proper motions of stars in the region of the open cluster NGC 2281". The Astrophysical Journal. 64: 170–174. Bibcode:1959AJ.....64..170V. doi:10.1086/107917.
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