单词	substellar
释义	substellar /sʌbˈstɛlə / adjective Astronomy Relating to or denoting a body much smaller than a typical star whose mass is not great enough to support main sequence hydrogen burning: substellar objects known as brown dwarfs may make up this dark mass... Whereas some folks consider brown dwarfs the duds of the galaxy, astronomers see beauty in these substellar embers. The mass fraction under the form of substellar objects in the halo of the Galaxy is likely to represent only 5 to 15% of the total dynamic mass. We have completed the most extensive survey to date for low mass stellar and substellar companions to white dwarfs in the solar neighborhood.
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