WISE 0855−0714

WISE 0855−0714 is a nearby substellar object in Hydra with an exceptionally low temperature, first identified in infrared observations by NASA’s Wide-field Infrared Survey Explorer.

Brown dwarf: A substellar object too low in mass to sustain hydrogen fusion in its core. WISE 0855−0714 belongs to this broad class of objects.
Wide-field Infrared Survey Explorer: A NASA space telescope that surveyed the sky in infrared light. Its survey data first revealed WISE 0855−0714.
Mordecai-Mark Mac Low: An astronomer whose research includes the discovery and characterization of cold brown dwarfs. He co-led the team that reported WISE 0855−0714.
WISE 0855−0714 and its companions: A comparison of WISE 0855−0714 with other nearby Y dwarfs and planetary-mass objects. Other cold objects provide benchmarks for interpreting its temperature and spectrum.
Y dwarf: The coolest spectral class of brown dwarfs, identified by distinctive infrared features. WISE 0855−0714 is classified as a Y dwarf.
WISE: NASA’s all-sky infrared survey mission, which operated from 2009 to 2011 and was later reactivated as NEOWISE. The object’s name records its discovery in this mission’s data.
Kevin Luhman: An astronomer known for discovering nearby low-mass stars and brown dwarfs. He announced the discovery of WISE 0855−0714 in 2014.
Gliese 229B: A T-type brown dwarf companion to the star Gliese 229, among the first brown dwarfs identified. It is warmer and spectrally distinct from the much colder WISE 0855−0714.
Substellar object: An astronomical object below the mass needed for sustained hydrogen fusion. This broader category includes brown dwarfs and planetary-mass objects like WISE 0855−0714.
James Webb Space Telescope: A space observatory designed to study the universe primarily at infrared wavelengths. Its infrared instruments can probe the spectrum and atmosphere of this cold object.

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