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).^[3]

ConstellationChamaeleon

Right ascension11^h 09^m 13.63^s[1]

Declination−77° 34′ 44.6″^[1]

Quick facts Constellation, Right ascension ...

Cha 110913−773444

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[1]
Declination	−77° 34′ 44.6″[1]
Astrometry
Distance	529[1][note 1] ly (162[1] pc)
Details
Mass	8+7 −3[1] MJup
Radius	2.0 or 2.1[2] RJup
Luminosity (bolometric)	0.000603[1][note 2] L☉
Temperature	1300–1400[1] K
Age	0.5–10[1] Myr
Database references
SIMBAD	data

Close

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.