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Perseus, in astronomy

(Encyclopedia) Perseus, in astronomy, northern constellation lying E of Cassiopeia and N of Taurus. It contains the bright star Mirfak (Alpha Persei) and Algol (Beta Persei), a visible variable star…

Spica

(Encyclopedia) SpicaSpicaspīˈkə [key], brightest star in the constellation Virgo; Bayer designation Alpha Virginis; 1992 position R.A. 13h24.8m, Dec. −11°07′. A bluish-white star of spectral class B1…

Scorpius

(Encyclopedia) ScorpiusScorpiusskôrˈpēəs [key] or ScorpioScorpius–pēō [key] [Lat.,=the scorpion], conspicuous southern constellation lying on the ecliptic (the sun's apparent path through the heavens…

Astraea

(Encyclopedia) AstraeaAstraeaăstrēˈə [key], in Greek religion and mythology, goddess of justice; daughter of Zeus and Themis. Because of the wickedness of man, she withdrew from the earth at the end…

Carina

(Encyclopedia) CarinaCarinakərēˈnə [key] [Lat.,=the keel], southern constellation, representing the keel of the ancient constellation Argo Navis, or Ship of the Argonauts. Carina contains Canopus,…

Rigel

(Encyclopedia) RigelRigelrīˈjəl [key], bright star in the constellation Orion; Bayer designation Beta Orionis; 1992 position R.A. 5h14.2m, Dec. −8°13′. A huge, blue supergiant of spectral class B8 Ia…

Ring nebula

(Encyclopedia) Ring nebula, planetary nebula in the northern constellation Lyra; cataloged as M57 or NGC 6720. It is perhaps the most famous and beautiful nebula of this type. Its name describes the…

Conon

(Encyclopedia) CononCononkōˈnŏn, –nən [key], 3d cent. b.c., Greek astronomer and mathematician of Samos. He traveled in the western part of the Greek world making astronomical observations, then…

Chiron

(Encyclopedia) ChironChironkīˈrŏn [key], in Greek mythology, centaur, son of Kronos. He was a renowned sage, physician, and prophet. Among his pupils were Hercules, Achilles, Jason, and Asclepius.…

Amalthaea

(Encyclopedia) AmalthaeaAmalthaeaămˌəlthēˈə [key], in Greek mythology, the stepmother of Zeus, a she-goat or nymph who nursed the infant Zeus. It was said that Zeus made one of her magnificent horns…