Relating to or denoting a body much smaller than a typical star whose mass is not great enough to support main sequence hydrogen burning.
More example sentences
- 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.
Definition of substellar in:
- The British & World English dictionary