Cha 110913−773444 Explained

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).^[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

• 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

Notes and References

1. Web site: 2005-11-29 . A Planet With Planets? Spitzer Finds Cosmic Oddball . . Whitney Clavin . 2006-03-26 . 2012-10-11 . https://web.archive.org/web/20121011011111/http://www.nasa.gov/vision/universe/starsgalaxies/spitzerf-20051129.html . dead .