sunspot Definition

macula, photosphere, zodiacal light, auroral, celestial sphere, celestial equator, meteor shower, annular eclipse, chromosphere, occultation, sidereal, oort cloud, nebula, insolation, earthshine, irradiance, magnetosphere, ecliptic, quasar, periodicities, planetary nebula, supernovae, cosmic ray, exoplanet, perseids, epsilon aurigae, novae, omega centauri, arcsecond, eclipsing binary, perihelion, betelgeuse, luminosities, cosmic microwave background, meteoroid, mimas, galaxies, radial velocity, baryon, tropopause, puppis, comet, corot, chondrites, mesosphere, pulsar, themis, astronomers, oscillations, airglow, kev, protostar, volcanism, syrtis major, spiral galaxy, storminess, ejecta, neutron star, deglaciation, meteors, cosmic rays, attosecond, ionosphere, heliopause, logarithmic scale, sundog, planets, prograde, perturbation, enceladus, redshift, prominences, moonlet, vorticity, milky way galaxy, amplitudes, troposphere, proxima centauri, perigee, picosecond, aphelion, stratovolcano, saturnian, anisotropy, cygni, asterism, andromeda galaxy, gamma rays, neutrino, tarantula nebula, cirrus, large magellanic cloud, photometry, exosphere, small magellanic cloud, spectra, glaciation, corona, millibar, cassiopeia,