Astronomy:Cha 110913−773444
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Short description: Brown dwarf in the constellation Chamaleon
| Observation data Equinox J2000.0]] (ICRS) | |
|---|---|
| Constellation | Chamaeleon |
| Right ascension | {{{ra}}} |
| Declination | −77° 34′ 44.6″[1] |
| Astrometry | |
| Distance | 529[1][note 1] ly (162[1] pc) |
| Details | |
| Mass | 8+7 −3[1] MJup |
| Radius | 1.8[1] RJup |
| Luminosity (bolometric) | 0.000603[1][note 2] L☉ |
| Temperature | 1300–1400[1] K |
| Age | 0.5–10[1] Myr |
| Database references | |
| SIMBAD | data |
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Cha 110913−773444 (sometimes abbreviated Cha 110913) is an astronomical object surrounded by what appears to be a protoplanetary disk. It lies at a distance of 529 light-years from Earth. There is no consensus yet among astronomers whether to classify the object as a sub-brown dwarf (with planets) or a rogue planet (with moons).[2]
Cha 110913−773444 was discovered in 2004 by Kevin Luhman and others at Pennsylvania State University using the Spitzer Space Telescope and the Hubble Space Telescope, as well as two Earth-bound telescopes in Chile .
See also
- WISEA J120037.79-784508.3, a brown dwarf with a primordial disk
- OTS 44, a rogue planet
- SCR 1845-6357, a binary system with a faint red dwarf and a brown dwarf
- PSO J318.5−22, a rogue planet
References
Notes
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