| Observation data Epoch 2012 Equinox 2012 | |
|---|---|
| Constellation | Orion |
| Right ascension | 05h 40m 9.2s |
| Declination | −02° 26′ 32″ |
| Apparent magnitude (V) | 20.95 |
| Characteristics | |
| Evolutionary stage | Brown dwarf |
| Spectral type | L |
| Astrometry | |
| Distance | 1500 ly |
| Details | |
| Temperature | 1300-2000 K |
| Age | 1-5 Myr |
S Ori 52 is an astronomical object from the Sigma Orionis cluster, in the spectral class L. The object was first observed by Maria Rosa Zapatero Osorio at the W.M. Keck Observatory on Mauna Kea.[1] The object is estimated to have a mass between 2 and 8 times the mass of Jupiter.[2] The exact nature of the object remains debatable, and studies show that it could be a sub-brown dwarf,[1] a rogue planet,[1] or it could simply be an older brown dwarf located in the foreground of the Orionis cluster.[3]
References
- 1 2 3 Zapatero Osorio, M. R.; Béjar, V. J. S.; Martı́n, E. L.; Rebolo, R.; Navascués, D. Barrado y; Bailer-Jones, C. A. L.; Mundt, R. (2000-10-06). "Discovery of Young, Isolated Planetary Mass Objects in the σ Orionis Star Cluster". Science. 290 (5489): 103–107. doi:10.1126/science.290.5489.103. ISSN 0036-8075. PMID 11021788.
- ↑ Gray, Richard O.; Corbally, Christopher J.; Burgasser, Adam J. (2009-03-29). Stellar Spectral Classification. Princeton University Press. ISBN 978-0-691-12511-4.
- ↑ Burgasser, Adam J.; Kirkpatrick, J. Davy; McGovern, Mark R.; McLean, Ian S.; Prato, L.; Reid, I. Neill (2004-04-01). "S Orionis 70: Just a Foreground Field Brown Dwarf?". The Astrophysical Journal. 604 (2): 827–831. Bibcode:2004ApJ...604..827B. doi:10.1086/382129. ISSN 0004-637X. S2CID 14102676.
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