red dwarf
Dim, compact star
A red dwarf is a small, cool star with low luminosity—the most common type of star in the universe.
Red dwarfs burn their hydrogen fuel slowly, giving them lifespans of trillions of years.
Because they're dim, none are visible to the naked eye despite their abundance: Proxima Centauri, the nearest star to our sun, is a red dwarf.
Stable stellar burning phase
- low massSmall quantity of matter
- hydrogenSimplest atomic element
- heliumLightest noble gas
- convectionHeat transfer via motion
photosphere · chromosphere · corona · luminosity · Proxima Centauri · binary system · habitable zone
Warmth at outer layer
- infraredHeat-bearing electromagnetic waves
- faintWeak and indistinct
- dimLow in light
- spectral linesDiscrete wavelength emission patterns
Gradual buildup of rage
- fuel efficiencyOutput per unit burned
- stableSecure and unchanging
- long-livedHaving extended lifespan
main sequence
Stable stellar burning phase
convection · photosphere · chromosphere · corona · luminosity · Proxima Centauri · binary system · habitable zone
surface temperature
Warmth at outer layer
slow burn
Gradual buildup of rage
- fuel efficiencyOutput per unit burned
- stableSecure and unchanging
- long-livedHaving extended lifespan
- Stellar Objectsneutron star, black hole, pulsar, magnetar, supermassive black hole
- astronomystars, moon, sun, planet, planets
- outer spacesun, moon, planet, star system, solar system
- space objectsgalaxy, star cluster, nebula, planet, quasar
- space stuffUFO, alien, meteor, comet, asteroid
- space mattermeteor, meteoroid, meteorite, moon, asteroid
red dwarfblue giant
Massive, luminous hot star
blue supergiant · red giant · supergiant · red supergiant · hypergiant
red dwarfblue star
Hottest stellar category
blue giant · white star · Rigel · Sirius
red, reddish, dwarf, redness, redden, redder, reddened, reddening, dwarfish