Astronomy:Cha 110913−773444
From HandWiki
Short description: Brown dwarf in the constellation Chamaleon
270px WISE image centered on the brown dwarf Cha 110913−773444 | |
| Observation data Equinox J2000.0]] (ICRS) | |
|---|---|
| Constellation | Chamaeleon |
| Right ascension | {{{ra}}} |
| 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 |
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]
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.
Gallery
See also
- WISEA J120037.79-784508.3, a brown dwarf with a primordial disk
- OTS 44, a rogue planet
- PSO J318.5−22, a rogue planet
- 2MASS J11151597+1937266, a relative nearby planetary-mass object with a disk
- KPNO-Tau 12, a low-mass brown dwarf or planetary-mass object with a disk
References
- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 1.6 Cite error: Invalid
<ref>tag; no text was provided for refs namedLuhman - ↑ Bonnefoy, M.; Chauvin, G.; Lagrange, A.-M.; Rojo, P.; Allard, F.; Pinte, C.; Dumas, C.; Homeier, D. (2014). "A library of near-infrared integral field spectra of young M-L dwarfs". Astronomy & Astrophysics 562 (127): A127. doi:10.1051/0004-6361/201118270. Bibcode: 2014A&A...562A.127B.
- ↑ Whitney Clavin (2005-11-29). "A Planet With Planets? Spitzer Finds Cosmic Oddball". NASA. http://www.nasa.gov/vision/universe/starsgalaxies/spitzerf-20051129.html. Retrieved 2006-03-26.
Notes
 |  |
