trifid Definition

nebulosity, planetary nebula, asterism, serpens, corona borealis, canis major, andromeda galaxy, coma berenices, spiral galaxy, ursa minor, celestial sphere, little dipper, crab nebula, horsehead nebula, monoceros, omega centauri, eridanus, nebular, cepheus, canes venatici, syrtis major, sundog, gibbous, circumstellar, eclipsing binary, milky way galaxy, camelopardalis, triangulum, puppis, epsilon aurigae, tarantula nebula, zodiacal light, airglow, ellipsoidal, capricornus, small magellanic cloud, starlike, large magellanic cloud, jovian, protostar, photosphere, proxima centauri, chromosphere, extragalactic, galactic plane, unpolarized, coronagraph, planitia, prominences, retroreflector, galaxies, orionis, corona australis, sunlike, betelgeuse, torus, fossae, hydrae, quasar, canis minor, supergiant, glaucous, borealis, luminosities, vulpecula, filamentary, cepheid variable, planetoids, aurigae, cumulus cloud, beta centauri, superdense, piscis austrinus, spheroidal, ionizes, delphinus, circinus, auroral, fornax, oort cloud, scorpius, polarimetry, lyrae, plutonian, prograde, synclinal, hydrus, fomalhaut, hyades, tetrahedron, earthlike, phaethon, umbel, hadron, magellanic, cygni, insectlike, mirrorlike, purplish pink, photometer,