hydrae Definition

orionis, eridanus, cepheus, camelopardalis, asterism, triangulum, serpens, lyrae, aurigae, cygni, crucis, capricornus, trifid, beta centauri, coma berenices, canes venatici, monoceros, eclipsing binary, corona borealis, arcturus, deneb, canis major, proxima centauri, parsec, scorpius, syrtis major, nebulosity, lacerta, tauri, denebola, hydrus, large magellanic cloud, betelgeuse, planetary nebula, cassiopeia, small magellanic cloud, hyades, puppis, fornax, horsehead nebula, nebula, omega centauri, corona australis, ursa minor, achernar, planitia, mintaka, typhon, supergiant, jovian, lapilli, arae, tarantula nebula, protostar, delphinus, boreas, kadett, fossae, cepheid variable, uranian, pollux, celestial sphere, epsilon, galactic plane, omicron, galactic equator, dipolar, andromeda galaxy, prograde, luminosities, spiral galaxy, circinus, borealis, celestial pole, scutum, vulpecula, africanus, baryon, tetrahedron, celestial equator, dihedral, ellipsoids, lucida, chamaeleon, procyon, saturnian, quadrantid, arcsecond, ecliptic, solar flare, robustus, heliopause, silenus, milky way galaxy, fenrir, mandragora, epimetheus, planetoids, vorticity, soarer,