protostar Definition

planetary nebula, neutron star, nebula, quasar, milky way galaxy, andromeda galaxy, gravitational interaction, oort cloud, spiral galaxy, planetesimal, proxima centauri, supergiant, ejecta, betelgeuse, large magellanic cloud, photosphere, chromosphere, cepheid variable, redshift, small magellanic cloud, exoplanet, celestial sphere, fomalhaut, galaxies, interstellar medium, supernovae, nucleosynthesis, eclipsing binary, chondrules, triangulum, pulsar, nuclei, planets, luminosities, gravitational attraction, corona, superdense, epsilon aurigae, magnetosphere, moonlet, subatomic particle, vortices, radial velocity, novae, strange quark, exosphere, torus, gamma rays, omega centauri, atoms, baryon, magnetic flux, superfluid, muons, antiprotons, nucleon, antiparticle, hadrons, corot, jovian, quasicrystal, coronagraph, heliosphere, dipole moment, radioactive decay, spicules, electroweak, trifid, pions, exciton, dipolar, angular momentum, positrons, supersolid, deuterium, fermion, enceladus, orbits, mesosphere, tarantula nebula, puppis, masers, asterism, orbitals, prominences, cosmic rays, iapetus, suns, phaethon, electron volt, attosecond, neutrino, mesons, filaments, spectroscopic, quasiparticle, neutrons, cosmic microwave background, astronomers, aurigae,