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

Astronomers: 'First Evidence' Of Water Clouds Discovered Outside Solar System

WASHINGTON (CBS DC) – Astronomers say they’ve discovered water ice clouds on a “brown dwarf” just 7.3 light-years from Earth – the first candidate outside our own solar system to have direct evidence of water clouds. 401 more words

News

A Graph Showing Approximate Mass-Boundaries Between Planets, Brown Dwarfs, and Red Dwarf Stars

I found the data for this graph from a variety of Internet sources, and it is based on a mixture of observational data, as well as theoretical work, produced by astronomers and astrophysicists. 90 more words

Science And Scientists

Proposed Mechanisms for New and Different Types of Novae

The picture above shows a proposed model for the production of a sudden increase in the brightness of a star — or rather, what is apparently a single star, optically, but would actually be a suddenly-produced binary stellar system. 559 more words

Science And Scientists