brown dwarf
Substellar dim object
A brown dwarf is a celestial object larger than a planet but too small to sustain hydrogen fusion like a true star.
Brown dwarfs occupy the mass range between the largest gas giants and the smallest stars, glowing dimly from the heat of their formation and slow gravitational contraction.
The telescope detected several brown dwarfs in the star cluster.
Calm or fashionable
- dimLow in light
- faintWeak and indistinct
- infraredHeat-bearing electromagnetic waves
- methaneSimplest alkane fuel
ammonia · atmosphere · convection · photosphere · temperature · gravity · mass · density
Below star threshold
One who keeps company
Growth through external addition
- diskFlat circular object
- protostarPre-fusion celestial body
- star formationDense cloud becomes sun
- core collapseStar's center caves inward
ejection · fragmentation · circumstellar · nebula · turbulence
Instrument magnifying faraway objects
- spectroscopyStudy of light-matter interaction
- photometryMeasuring light intensity
- parallaxPosition change from different vantages
- space telescopeInstrument observing cosmos from orbit
WISE · astrometry · magnitude · redshift
cool
Calm or fashionable
methane · ammonia · atmosphere · convection · photosphere · temperature · gravity · mass · density · magnetic field
substellar
Below star threshold
companion
One who keeps company
solitary · free-floating · habitable zone · planetary system
accretion
Growth through external addition
- diskFlat circular object
- protostarPre-fusion celestial body
- star formationDense cloud becomes sun
core collapse · ejection · fragmentation · circumstellar · nebula · turbulence
telescope
Instrument magnifying faraway objects
- spectroscopyStudy of light-matter interaction
- photometryMeasuring light intensity
- parallaxPosition change from different vantages
space telescope · WISE · astrometry · magnitude · redshift
- astronomystars, moon, sun, planet, planets
- cosmosuniverse, galaxies, galaxy, stars, star
- space mattermeteor, meteoroid, meteorite, moon, asteroid
- space phenomenastars, black hole, meteors, wormhole, dark energy
- starsstars, Sirius, Polaris, sol, sun
- Stellar Objectsneutron star, black hole, pulsar, magnetar, supermassive black hole
brown dwarfsupergiant
Huge luminous evolved star
blue supergiant · hypergiant · blue giant · massive star · red supergiant
brown, brownish, dwarf, browned, browning, browns, dwarfs, dwarfish, dwarves