Assertion: dwarf's atmosphere | /r/HasProperty | hydrogen-dominated
Facets:
Source sentences:
text: The envelope is believed to consist of a helium-rich layer with mass no more than ​1⁄ 100 of the star's total mass, which, if the atmosphere is hydrogen-dominated, is overlain by a hydrogen-rich layer with mass approximately ​1⁄ 10,000 of the stars total mass.:§§4–5