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).

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
Declination −77° 34 44.6
Astrometry
Distance529 ly
(162 pc)
Details
Mass8+7
−3
 MJup
Radius1.8 RJup
Luminosity (bolometric)0.000603 L
Temperature1300–1400 K
Age0.5–10 Myr
Database references
SIMBADdata

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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