arcturus Definition

baal, canis major, corona borealis, betelgeuse, deneb, asterism, capricornus, constellation, pleiades, proxima centauri, aldebaran, coma berenices, cepheus, eridanus, scorpius, beta centauri, corona australis, big dipper, nebula, canis minor, andromeda galaxy, ecliptic, celestial equator, little dipper, triangulum, monoceros, celestial sphere, planetary nebula, fomalhaut, ursa minor, puppis, hyades, celestial pole, ophiuchus, zodiacal light, cygnus, dubhe, alpha centauri, mintaka, procyon, cygni, algol, cassiopeia, canes venatici, orionis, cetus, hydrae, milky way galaxy, serpens, denebola, aurigae, eclipsing binary, lyrae, delphinus, syrtis major, achernar, camelopardalis, prograde, omega centauri, uranus, photosphere, bootes, tauri, small magellanic cloud, galaxy, trifid, pollux, epimetheus, scutum, hydrus, quasar, supergiant, luminosities, horsehead nebula, cepheid variable, parsec, moho, chromosphere, circinus, large magellanic cloud, aurora, nebulosity, epsilon aurigae, airglow, phobos, fossae, coronagraph, radial velocity, orcus, orb, heliopause, aesir, fornax, perihelion, tucana, ixion, uranian, photometry, protostar, interferometer,