Cha 110913−773444
Appearance
This article relies largely or entirely on a single source. (January 2017) |
Observation data Epoch J2000.0 Equinox J2000.0 | |
---|---|
Constellation | Chamaeleon |
Right ascension | 11h 09m 13.63s |
Declination | −77° 34' 44.6" |
Apparent magnitude (V) | +21.59 |
Characteristics | |
Spectral type | L-dwarf |
Astrometry | |
Distance | 163 ly (50 pc) |
Absolute magnitude (MV) | +18.1 |
Details | |
Mass | 8+7 −3 MJup |
Radius | 1.8 RJup |
Luminosity | 0.000096 L☉ |
Temperature | 1,350 K |
Age | 0.5–10 Myr |
Database references | |
SIMBAD | data |
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 163 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).[1]
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
- 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
- ^ Whitney Clavin (2005-11-29). "A Planet With Planets? Spitzer Finds Cosmic Oddball". NASA. Retrieved 2006-03-26.
External links