Cha_110913-773444

Cha 110913−773444

Cha 110913−773444

Brown dwarf in the constellation Chamaleon

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).[2]

Quick Facts Constellation, Right ascension ...

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

References

  1. [1]
    Luhman, K. L; Adame, Lucía; d'Alessio, Paola; Calvet, Nuria; Hartmann, Lee; Megeath, S. T; Fazio, G. G (2005). "Discovery of a Planetary-Mass Brown Dwarf with a Circumstellar Disk". The Astrophysical Journal. 635 (1): L93–L96. arXiv:astro-ph/0511807. Bibcode:2005ApJ...635L..93L. doi:10.1086/498868. S2CID 11685964.
  2. [2]
    Whitney Clavin (2005-11-29). "A Planet With Planets? Spitzer Finds Cosmic Oddball". NASA. Archived from the original on 2012-10-11. Retrieved 2006-03-26.

Notes

  1. [N 1]
    From a distance modulus (μ) of 6.05
  2. [N 2]
    From the logarithm (log Lbol) of −3.22


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