2MASS J21265040−8140293, also known as 2MASS J2126−8140,[3] is an
exoplanet orbiting the
red dwarfTYC 9486-927-1, 111.4±0.3[5] light-years away from Earth. Its estimated mass, age (10-45 million years), spectral type (L3), and Teff (1800 K) are similar to the well-studied planet
β Pictoris b.[3] With an estimated distance of around 1 trillion kilometres from its host star, it is one of the largest solar systems ever found.[6]
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abJones, H R A.; Caballero, J. A.; Beamín, J. C.; Barrado, D.; Sarro, L. M.; Marocco, F.; Smart, R. L. (2019), "The Gaia Ultra-Cool Dwarf Sample – II: Structure at the end of the main sequence", Monthly Notices of the Royal Astronomical Society, 485 (3): 4423–4440,
arXiv:1902.07571,
doi:
10.1093/mnras/stz678,
S2CID119421722