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かっしょくわいせい 褐色矮星
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Noun
1. brown dwarf​Astronomy
Wikipedia definition
2. 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 chemical differentiation by depth. Brown dwarfs occupy the mass range between that of large gas giant planets and the lowest-mass stars; this upper limit is between 75 and 80 Jupiter masses .
Read “Brown dwarf” on English Wikipedia
Read “褐色矮星” on Japanese Wikipedia
Read “Brown dwarf” on DBpedia
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褐色わい星 【かっしょくわいせい】

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