Columbia Encyclopedia

Search results

500 results found

Prometheus, in astronomy

(Encyclopedia)Prometheus prōmēˈthēəs [key], in astronomy, one of the named moons, or natural satellites, of Saturn. Also known as Saturn XVI (or S16), Prometheus is an irregularly shaped (nonspherical) body me...

Proteus, in astronomy

(Encyclopedia)Proteus prōˈtēəs, –tyo͞os [key], in astronomy, one of the natural satellites, or moons, of Neptune. ...

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...

ring, in astronomy

(Encyclopedia)ring, in astronomy, relatively thin band of rocks and dust and ice particles that orbit around a planet in the planet's equatorial plane. All four of the giant planets in the solar system—Jupiter, S...

Oberon

(Encyclopedia)Oberon ōˈbərŏnˌ [key], in astronomy, one of the moons, or natural satellites, of Uranus. ...

Portia

(Encyclopedia)Portia pôrˈshə [key], in astronomy, one of the natural satellites, or moons, of Uranus. ...

Sycorax

(Encyclopedia)Sycorax sĭkˈərăksˌ [key], in astronomy, one of the natural satellites, or moons, of Uranus. ...

Umbriel

(Encyclopedia)Umbriel ŭmˈbrēĕlˌ [key], in astronomy, one of the moons, or natural satellites, of Uranus. ...

Titania

(Encyclopedia)Titania tĭtāˈnēə [key], in astronomy, largest of the known moons, or natural satellites, of Uranus. ...

Rosalind

(Encyclopedia)Rosalind rŏzˈəlĭndˌ, rōˈzə– [key], in astronomy, one of the natural satellites, or moons, of Uranus. ...