Cha 110913−773444
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).
WISE image centered on the brown dwarf Cha 110913−773444 | |
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Chamaeleon |
| Right ascension | 11h 09m 13.63s |
| Declination | −77° 34′ 44.6″ |
| Astrometry | |
| Distance | 529 ly (162 pc) |
| Details | |
| Mass | 8+7 −3 MJup |
| Radius | 1.8 RJup |
| Luminosity (bolometric) | 0.000603 L☉ |
| Temperature | 1300–1400 K |
| Age | 0.5–10 Myr |
| Database references | |
| SIMBAD | data |
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.
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