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Pickering, William Henry

(Encyclopedia)Pickering, William Henry, 1858–1938, American astronomer, b. Boston, grad. Massachusetts Institute of Technology (B.S., 1879). He taught at the Massachusetts Institute of Technology (1880–87) and ...

Shawnee Prophet

(Encyclopedia)Shawnee Prophet, 1775?–1837?, Native North American of the Shawnee tribe; brother of Tecumseh. His Native American name was Tenskwautawa. He announced himself as a prophet bearing a revelation from ...

Stonehenge

(Encyclopedia)Stonehenge stōnˈhĕnjˌ [key], group of standing stones on Salisbury Plain, Wiltshire, S England. Preeminent among megalithic monuments in the British Isles, it is similar to an older and larger mon...

Eddington, Sir Arthur Stanley

(Encyclopedia)Eddington, Sir Arthur Stanley, 1882–1944, British astronomer and physicist. He was chief assistant (1906–13) at the Royal Observatory, Greenwich, and was from 1913 Plumian professor of astronomy a...

moon

(Encyclopedia)CE5 The moon: Near side CE5 The moon: Far side moon, natural satellite of a planet (see satellite, natural) or dwarf planet, in particular, the single natural satellite of the earth. It is no...

saros

(Encyclopedia)saros: see eclipse.

Baily's beads

(Encyclopedia)Baily's beads: see eclipse.

umbra

(Encyclopedia)umbra: see eclipse; sunspots. ...

penumbra

(Encyclopedia)penumbra pĭnŭmˈbrə [key]: see eclipse; sunspots. ...

sun, in astronomy

(Encyclopedia)CE5 Structure of the sun sun, intensely hot, self-luminous body of gases at the center of the solar system. Its gravitational attraction maintains the planets, comets, and other bodies of the sola...