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Boötes

(Encyclopedia)Boötes bō-ōˈtēz [key] [Gr.,=the herdsman], northern constellation located to the SE of the Big Dipper in Ursa Major and W of Corona Borealis, the Northern Crown. It contains the brilliant orange ...

Vaal

(Encyclopedia)Vaal fäl [key], river, c.750 mi (1,210 km) long, rising in Mpumalanga, NE South Africa, and flowing SW to the Orange River. It forms most of the northern border of the Free State. The river's flow is...

Sintra

(Encyclopedia)Sintra or Cintra both: sēnˈtrə [key], town (1991 pop. 20,750), Lisboa dist., W Portugal, in Estremadura. The region has orange groves and vineyards as well as marble quarries, but Cintra is known p...

Spectral Classes for Main Sequence Stars (table)

(Encyclopedia)Characteristics of Spectral Classes for Main Sequence Stars ...

serval

(Encyclopedia)serval, medium-sized African cat, Leptailurus serval, found S of the Sahara in scrub country close to water. The serval is lightly built with very long legs; it has a small head with large eyes and ea...

shellac

(Encyclopedia)shellac, solution of lac in alcohol or acetone. In commerce the name is applied to the resinous substance (lac) itself rather than to the solution. It ranges in color from orange to light yellow depen...

Portland, William Bentinck, 1st earl of

(Encyclopedia)Portland, William Bentinck, 1st earl of, 1649–1709, Dutch statesman in England. He was William III's most trusted personal adviser. In 1677 he engaged in negotiating the marriage of William (then pr...

Pollux, in astronomy

(Encyclopedia)Pollux, brightest star in the constellation Gemini; Bayer designation Beta Geminorum; 1992 position R.A. 7h44.8m, Dec. +28°03′. An orange giant of spectral class K0 III, it is the nearest giant sta...

Ormonde, James Butler, 2d duke of

(Encyclopedia)Ormonde, James Butler, 2d duke of, 1665–1745, Irish soldier. He was the son of Thomas Butler, earl of Ossory, and grandson of the Ist duke, whom he succeeded in 1688. A staunch Tory and popular mili...

krypton

(Encyclopedia)krypton krĭpˈtŏn [key] [Gr.,=hidden], gaseous chemical element; symbol Kr; at. no. 36; at. wt. 83.798; m.p. −156.6℃; b.p. −152.3℃; density 3.73 grams per liter at STP; valence usually 0. Kr...