WISE J004945.61+215120.0 is a brown dwarf of spectral class T8.5, located in constellation Andromeda at approximately 24 light-years from Earth.
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Discovery
WISE J004945.61+215120.0 was discovered in 2012 by Mace et al. from data, collected by Wide-field Infrared Survey Explorer (WISE) Earth-orbiting satellite — NASA infrared-wavelength 40 cm (16 in) space telescope, which mission lasted from December 2009 to February 2011. In 2013, the discovery paper was published.
Distance
Trigonometric parallax of WISE J004945.61+215120.0 is not yet measured. Therefore, there are only distance estimates of this object, obtained by indirect — spectrofotometric — means (see table).
WISE J004945.61+215120.0 distance estimates
Non-trigonometric distance estimates are marked in italic.