sub-brown dwarf

A planetary mass object, less massive than a brown dwarf star, and not in orbit around a star.

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  • Sub-brown dwarf — is a planetary mass object whose mass is smaller than the low mass cut off for brown dwarfs (around 13 times the mass of Jupiter). Unlike proper brown dwarfs, they are not massive enough to fuse deuterium. Sub brown dwarfs are formed in the… …   Wikipedia

  • Brown dwarf — Brown dwarfs are sub stellar objects which are too low in mass to sustain hydrogen 1 fusion reactions in their cores, which is characteristic of stars on the main sequence. Brown dwarfs have fully convective surfaces and interiors, with no… …   Wikipedia

  • Dwarf star — The term dwarf star refers to a variety of distinct classes of stars. Dwarf star alone generally refers to any main sequence star, a star of luminosity class V. Red dwarfs are low mass main sequence stars. Yellow dwarfs are main sequence (dwarf)… …   Wikipedia

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  • Dwarf planet — Not to be confused with Minor planet. Ceres as seen with the Hubble Space Telescope. It is the only dwarf planet in the asteroid belt …   Wikipedia

  • Brown rat — Rattus norvegicus redirects here. For the album, see Rattus Norvegicus (album). Brown rat Conservation status …   Wikipedia

  • White dwarf — For other uses, see White dwarf (disambiguation). Image of Sirius A and Sirius B taken by the Hubble Space Telescope. Sirius B, which is a white dwarf, can be seen as a faint pinprick of light to the lower left of the much brighter Sirius A …   Wikipedia

  • Black dwarf — A black dwarf is a hypothetical star, created when a white dwarf becomes sufficiently cool to no longer emit significant heat or light. Since the time required for a white dwarf to reach this state is calculated to be longer than the current age… …   Wikipedia

  • Japanese dwarf flying squirrel — Taxobox name = Japanese Dwarf Flying Squirrel status = LR/lc | status system = IUCN2.3 image width = 200px regnum = Animalia phylum = Chordata classis = Mammalia ordo = Rodentia familia = Sciuridae tribus = Pteromyini genus = Pteromys species = P …   Wikipedia

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