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Belgorod

(Encyclopedia)Belgorod byĕlˈgərəd [key], city, capital of Belgorod region, S central European Russia, on the ...

Clark, Alvan

(Encyclopedia)Clark, Alvan, 1804–87, American astronomer and maker of astronomical lenses, b. Ashfield, Mass. In 1846 the firm of Alvan Clark & Sons was established at Cambridgeport, Mass.; it became famous a...

Dreyer, Johan Ludwig Emil

(Encyclopedia)Dreyer, Johan Ludwig Emil yōˈhän lo͝otˈvĭkh āˈmēl [key], 1852–1926, Danish astronomer, b. Copenhagen, who worked in Great Britain. He was assistant astronomer at the earl of Rosse's observa...

Bond, William Cranch

(Encyclopedia)Bond, William Cranch, 1789–1859, American astronomer, b. Portland, Maine. He early aided his father in the trades of silversmith and clockmaker in Boston. He soon became an expert in the making of c...

ultraviolet astronomy

(Encyclopedia)ultraviolet astronomy, study of celestial objects by means of the ultraviolet radiation they emit, in the wavelength range from about 90 to about 350 nanometers. Ultraviolet (UV) line spectrum measure...

Hangzhou

(Encyclopedia)Hangzhou hăngˈchou [key], city (1994 est. pop. 1,184,300), capital of Zhejiang prov., E China. It is on the Fuchun River at the head of Hangzhou Bay and handles river traffic through its port. It is...

Malabar Coast

(Encyclopedia)Malabar Coast mălˈəbär [key], SW coast of India stretching c.525 mi (845 km) from Goa to the southern tip of the peninsula at Kanniyakumri (Cape Comorin), primarily in Kerala state and the norther...

Block, Adriaen

(Encyclopedia)Block, Adriaen, fl. 1610–24, Dutch navigator. Eager to establish a fur trade with the Native Americans, Amsterdam merchants sent (1613) Block and another Dutch navigator to explore the region discov...

X-ray astronomy

(Encyclopedia)X-ray astronomy, study of celestial objects by means of the X rays they emit, in the wavelength range from 0.01 to 10 nanometers. X-ray astronomy dates to 1949 with the discovery that the sun emits X ...

White Sea

(Encyclopedia)White Sea, Rus. Beloye More, c.36,680 sq mi (95,000 sq km), NW European Russia, an inlet of the Barents Sea. Its northern section, opening into the Barents Sea between the Kola and Kanin peninsulas, i...