Cha 110913−773444
File:WISE1109-7734 (with marker, edited).png WISE image centered on the brown dwarf Cha 110913−773444 | |
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Chamaeleon |
| Right ascension | Template:RA[1] |
| Declination | Template:DEC[1] |
| Astrometry | |
| Distance | 529[1][note 1] ly (162[1] pc) |
| Details | |
| Mass | Script error: No such module "val".[1] MJup |
| Radius | 2.0 or 2.1[2] RJup |
| Luminosity (bolometric) | 0.000603[1][note 2] Template:Solar luminosity |
| Temperature | 1300–1400[1] K |
| Age | 0.5–10[1] Myr |
| Metallicity [Fe/H] | {{{metal_fe2}}} dex |
| 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).[3]
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
- 2MASS J11151597+1937266, a relative nearby planetary-mass object with a disk
- KPNO-Tau 12, a low-mass brown dwarf or planetary-mass object with a disk
References
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Notes
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