Tags » Brown Dwarf

on the Sizes of Stars

Stars are easy to understand.  The definition of a star is pretty clear: Stars are self-gravitating masses of gas* that sustain nuclear fusion in their cores.  689 more words

Astronomy

Water ice clouds discovered in distant brown dwarf

(Artist’s conception of brown dwarf WISE J085510.83-071442.5 – Photo Credit: Rob Gizis (CUNY BMCC/YouTube)

For the first time, astronomers have detected water ice clouds outside of our solar system in a newly discovered brown dwarf that’s believed to be as cold as the North Pole. 257 more words

Outside Our Solar System