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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 of the type know...

Perseus, in Greek mythology

(Encyclopedia)Perseus pûrˈsēəs, –so͝os [key], in Greek mythology, son of Zeus and Danaë. His grandfather, Acrisius, had been warned by an oracle that his grandson would kill him and therefore put Perseus an...

Perseus, king of Macedon

(Encyclopedia)Perseus, c.212–166 b.c., last king of Macedon (179–168 b.c.), son and successor of Philip V. He intrigued against his younger brother, Demetrius, eventually bringing about the latter's execution b...

Algol, in astronomy

(Encyclopedia)Algol ălˈgŏl [key], famous variable star in the constellation Perseus; Bayer designation β Persei; 1992 position R.A. 3h07.7m, Dec. +40°55′. Algol's variation in apparent magnitude, from 2.06 t...

coma, in astronomy

(Encyclopedia)coma, in astronomy: see comet.

Eros, in astronomy

(Encyclopedia)Eros, in astronomy: see asteroid. ...

Hermes, in astronomy

(Encyclopedia)Hermes, in astronomy: see asteroid. ...

Icarus, in astronomy

(Encyclopedia)Icarus, in astronomy: see asteroid. ...

Charon, in astronomy

(Encyclopedia)Charon, in astronomy, the natural satellite, or moon, of Pluto. ...

Naiad, in astronomy

(Encyclopedia)Naiad, in astronomy, one of the natural satellites, or moons, of Neptune. ...