Category

IRAS catalogue objects

page 9

BD +20°307 thumbnail

BD+20°307 is a close binary star system approximately 300 light-years away in the constellation Aries. The system is surrounded by a dusty ring, and probably orbited by a 0.48 white dwarf on a wide (980 AU) orbit.

planetary nebula in the constellation Crater

variable star in the constellation Andromeda

variable star in the constellation Taurus

Bar spiral galaxy in the constellation Lepus

variable star in the constellation Pegasus

pair of galaxies that are merging, located in the constellation Delphinus

yellow hypergiant star

IC 4710 thumbnail

star in the constellation Taurus

star in the constellation Cygnus

star in the constellation Cygnus

variable star in the constellation Musca

CT Chamaeleontis

star in the constellation Chamaeleon

star in the constellation Aquila

BD+60°2522 is a bright O-type star that has produced the Bubble Nebula (NGC 7635) with its stellar wind. The exact classification of the star is uncertain, with a number of spectral peculiarities and inconsistencies between the appearance of the star itself and the effects on the nearby nebulosity, but it is undoubtedly a highly luminous hot massive star. Direct spectroscopy yields a spectral class of O6.5 and an effective temperature around . It is a member of the Cassiopeia OB2 stellar association in the Perseus Arm of the galaxy at about 8,500 light-years' distance.

star in the constellation Apus

IRAS 16293-2422

star in the constellation Cygnus

red supergiant star

variable star in the constellation Monoceros

variable star in the constellation Cassiopeia

IRAS 08544−4431

IRAS 05437+2502

reflection nebula

pair of interacting galaxies in the constellation Triangulum Australe

star in the constellation Carina

variable star in the constellation Cepheus

variable star in the constellation Aquila

astronomical radio source in the constellation Leo

star in the constellation Centaurus

star in the constellation Taurus

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