substellar

adjective sub·stel·lar \ ˌsəb-ˈste-lər \
variants: or sub-stellar
Updated on: 15 Nov 2017

Definition of substellar

of a celestial object
:having less mass than a star :not having the mass required to sustain nuclear fission
  • Subsequent hunts within young stellar clusters have flushed out droves of brown dwarfs. Prime targets are the Pleiades cluster and star-forming regions in Orion and Taurus, where substellar bodies rival stars in number.
  • —Robert Irion
  • Very often, the most publicized events in astronomy involve the detection of fundamentally new types of objects. The discovery of a substellar object, a "brown dwarf" some dozens of times as massive as Jupiter, falls in this category.
  • Physics Today

First Known Use of substellar

1949


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