Corona Borealis (abbreviation: CrB), the Northern Crown, given by Bacchus to Ariadne, daughter of King Minos of Crete, is a small but prominent northern constellation. It lies east of Arcturus between Boötes and Hercules, and comprises a distinctive arc formed by the stars Theta, Beta, Alpha, Gamma, Delta, Epsilon, and Iota). Also within its boundaries are the prototype R Coronae Borealis star and T CrB, popularly known as the Blaze Star. See below for details of the constellation's brightest stars.

 

Hercules and Corona Borealis, as depicted in Urania's Mirror (c. 1825).

 

Stars in Corona Borealis brighter than magnitude 4.0
star	vis mag	abs mag	spec type	distance (ly)	RA (h m s)	Dec (° ' ")
Alpha (Alphekka)	2.22	0.42	A0V	75	15 34 41	+26 42 53
Beta (Nusakan)	3.66	0.94	F0Vp	114	15 27 50	+29 06 21
Gamma	3.81	0.57	B9IV+A3V	145	15 42 45	+26 17 44

 

Constellations

Andromeda | Antlia | Apus | Aquarius | Aquila | Ara | Aries | Auriga | Bootes | Caelum | Camelopardalis | Cancer | Canes Venatici | Canis Major | Canis Minor | Capricornus | Carina | Cassiopeia | Centaurus | Cepheus | Cetus | Chamaeleon | Circinus | Columba | Coma Berenices | Corona Austrina | Corona Borealis | Corvus | Crater | Crux | Cygnus | Delphinus | Dorado | Draco | Equuleus | Eridanus | Fornax | Gemini | Grus | Hercules | Horologium | Hydra | Hydrus | Indus | Lacerta | Leo | Leo Minor | Lepus | Libra | Lupus | Lynx | Lyra | Mensa | Microscopium | Monoceros | Musca | Norma | Octans | Ophiuchus | Orion | Pavo | Pegasus | Perseus | Phoenix | Pictor | Pisces | Piscis Austrinus | Puppis | Pyxis | Reticulum | Sagitta | Sagittarius | Scorpius | Sculptor | Scutum | Serpens | Sextans | Taurus | Telescopium | Triangulum | Triangulum Australe | Tucana | Ursa Major | Ursa Minor | Vela | Virgo | Volans | Vulpecula