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Hertzsprung-Russell diagram

(Encyclopedia)CE5 The Hertzsprung-Russell diagram shows the relation between the luminosity and surface temperature (which is related to spectral class, or color) of the stars in the Milky Way. Most stars fall a...

black hole

(Encyclopedia)black hole, in astronomy, celestial object of such extremely intense gravity that it attracts everything near it and in some instances prevents everything, including light, from escaping. The term was...

Antares

(Encyclopedia)Antares ăntârˈēz [key], brightest star in the constellation Scorpius; Bayer designation Alpha Scorpii; 1992 position R.A. 16h27.6m, Dec. −26°22′. A red supergiant of spectral class M1, Antare...

Hertzsprung, Ejnar

(Encyclopedia)Hertzsprung, Ejnar īˈnär hĕrtsˈspro͞ong [key], 1873–1967, Danish astronomer. Although trained as a chemical engineer, Hertzsprung made his career in astronomy, specializing in exacting photogr...

Hadar, in astronomy

(Encyclopedia)Hadar or Beta Centauri bāˈtə sĕntôrˈē [key], bright star in the constellation Centaurus; 1992 position R.A. 14h01.7m, dec. −60°13′. A bluish-white giant of spectral class B1 II, it has an ...

Paige, Satchel

(Encyclopedia)Paige, Satchel (Leroy Paige) săchˈəl pāj [key], 1906–82, American baseball player, b. Mobile, Ala. He began pitching in 1924, joined his first professional team two years later, and became a sta...

Orion Nebula

(Encyclopedia)Orion Nebula, bright diffuse nebula in the constellation Orion; also known as the Great Nebula of Orion and cataloged as M42 or NGC 1976. It is located near the middle of the “sword” hanging from ...

Kundla, John Albert

(Encyclopedia)Kundla, John Albert, 1916–, American basketball coach, b. Star Junction, Pa. A star player at the Univ. of Minnesota, he served in the navy during World War II, then coached (1946–47) at the Colle...

virtual telescope

(Encyclopedia)virtual telescope, a computerized interferometer (see interference) that merges the images from two or more telescopes to obtain a single, large, enhanced image. The image in each telescope is made fr...

Wise Men of the East

(Encyclopedia)Wise Men of the East, Magi, or Three Kings, men who came from the East to adore the newborn Jesus. Mat. 2. They were the first to tell Herod of the birth. A star (the Star of Bethlehem) had been a si...