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Sol, in Roman religion

(Encyclopedia)Sol sŏl [key], in Roman religion, sun god. An ancient god of Mesopotamian origin, he was introduced (c.220) into Roman religion as Sol Invictus by emperor Heliogabalus. His worship remained an import...

Neptune, in astronomy

(Encyclopedia)Neptune, in astronomy, 8th planet from the sun at a mean distance of about 2.8 billion mi (4.5 billion km) with an orbit lying between those of Uranus and the dwarf planet Pluto; its period of revolut...

Shamash

(Encyclopedia)Shamash shäˈmäsh [key], sun god of Semitic origin, worshiped in Babylonia and Assyria. He was one of the great deities of ancient Middle Eastern religions, god of law, order, and justice. The chief...

Arcturus

(Encyclopedia)Arcturus ärkto͝orˈəs [key], brightest star in the constellation Boötes and 4th-brightest star in the entire sky; Bayer designation Alpha Boötis; 1992 position R.A. 14h15.3m, Dec. +19°13′. An ...

Godden, Rumer

(Encyclopedia)Godden, Rumer (Margaret Rumer Godden) gŏdˈən [key], 1907–98, English novelist. Godden was highly praised for the subtlety of her characterization (particularly of children), the charm of her styl...

Trojan asteroids

(Encyclopedia)Trojan asteroids, asteroids that revolve about the sun in the same orbit as a planet, occupying stable positions (known as Lagrangian points) either about 60° ahead of the planet in the orbit or abou...

center of mass

(Encyclopedia)center of mass, the point at which all the mass of a body may be considered to be concentrated in analyzing its motion. The center of mass of a sphere of uniform density coincides with the center of t...

Carina

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

planet

(Encyclopedia)planet [Gr.,=wanderer], a large nonluminous body of rock, gas, or ice that orbits the sun or another star, has a rounded shape due to gravity, and has cleared its orbit of smaller objects. The term, o...

Selene

(Encyclopedia)Selene səlēˈnē [key], in Greek mythology and mythology, moon goddess; daughter of the Titans Hyperion and Theia and sister of the sun god Helios. There was no known moon cult among the Greeks, but...