solar eclipse, partial eclipse, lunar eclipse, umbra, annularity, meteor shower, moonset, occultation, celestial equator, eclipse, zodiacal light, epsilon aurigae, earthshine, moonrise, aphelion, aurora, perihelion, perseids, syrtis major, celestial sphere, gibbous, sidereal, ecliptic, asterism, aurora australis, mimas, equinox, photosphere, oort cloud, sunspot, perigee, occulted, omega centauri, tarantula nebula, autumnal equinox, spring equinox, equator, aurora borealis, equinoxes, iapetus, capricornus, nebula, obscuration, meteors, sundog, arcsecond, triangulum, planetary nebula, equatorial, airglow, astronomical telescope, supercontinent, hilal, astronomers, saturnian, eclipsing binary, phaethon, flyby, lutetia, coma berenices, tuamotu archipelago, optical telescope, pleiades, vernal equinox, meteoroid, solstices, intertropical convergence zone, anticyclones, marquesas islands, neptunian, galactic equator, laurasia, tropopause, sunward, heliopause, attosecond, corona borealis, el nino southern oscillation, prograde, prominences, comet, spiral galaxy, stratovolcano, sunrises, summer solstice, eratosthenes, supernova, exosphere, orbits, quadrantid, moonlet, exoplanet, eridanus, sextile, corot, raman effect, nubian desert, moon, fringing reef, icecap, heliosphere, nebulosity