Brown dwarf star is a class of stellar objects as a mass of about 5-90 Jupiter.
棕矮星是类恒星天体的一种，质量约为5至90个木星之间。
Nicknamed "Nemesis" or "the Death star," this undetected object could be a red or brown dwarf star, or an even darker presence several times the mass of Jupiter.
绰号“复仇者”或者“死亡之星”的未被发现的天体可能是一颗红矮星或者褐矮星，甚至是更暗的物质，质量几倍于木星。
It took so long to find because it's an extremely dim and cool kind of failed star called a brown dwarf.
因为它亮度很低，是“不成功”的恒星——褐矮星中温度很低的一种，天文学家花了很长时间才找到它。
This diagram shows a brown dwarf in relation to Earth, Jupiter, a low-mass star and the sun.
这张是褐矮星相对地球、木星、低质量恒星和太阳的对比图。
The red orb at bottom left is a young planet, similar in composition to Jupiter, orbiting a brown dwarf, a dim, failed star that is probably 42 times less massive than the sun.
左下角红色球体，是一颗年轻行星，其组成成分和木星相似，绕褐色矮星做轨道运行。
The star is a brown dwarf - and formed, like other stars, out of a cloud of dust and gas.
这颗恒星是褐矮星――像其他恒星一样，外部由尘埃和气体云构成。
Scientists have not ruled out that the COROT-exo-3b may be a brown dwarf, or failed star.
科学家们还没有排除COROT - exo - 3b是褐矮星还是不成功恒星的可能性。
The star is a brown dwarf - and formed, like other stars, out of a cloud of dust and gas.
这颗恒星是褐矮星——像其他恒星一样，外部由尘埃和气体云构成。
The star is a brown dwarf - and formed, like other stars, out of a cloud of dust and gas.
这颗恒星是褐矮星——像其他恒星一样，外部由尘埃和气体云构成。
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