Donati, Giovanni Battista

(jōvän`nē bät-tēs`tä dōnä`tē), 1826–73, Italian astronomer, b. Pisa. Serving as director of the Florence Observatory from 1864, he was a pioneer in the spectroscopic study of the stars and the sun. Donati was the first to obtain and analyze the spectrum of a comet, concluding that the composition of comets is, at least in part, gaseous. He discovered (1854–64) six new comets, among them Donati's comet, which he first saw on June 2, 1858.

Donati, Giovanni Battista

Born Dec. 16, 1826, in Pisa; died Sept. 20, 1873, in Florence. Italian astronomer.

Donati studied at the University of Pisa and obtained the post of assistant at the observatory in Florence. He observed numerous comets and was the first to discover the great comet of 1858, which has been named after him. In 1864 he was appointed director of the observatory. Donati is known for his spectroscopic studies of comets. He founded the Arcetri Astrophysical Observatory near Florence in 1872.

单词	donati, giovanni battista
释义	Donati, Giovanni Battista Donati, Giovanni Battista (jōvän`nē bät-tēs`tä dōnä`tē), 1826–73, Italian astronomer, b. Pisa. Serving as director of the Florence Observatory from 1864, he was a pioneer in the spectroscopic study of the stars and the sun. Donati was the first to obtain and analyze the spectrum of a comet, concluding that the composition of comets is, at least in part, gaseous. He discovered (1854–64) six new comets, among them Donati's comet, which he first saw on June 2, 1858. Donati, Giovanni Battista Born Dec. 16, 1826, in Pisa; died Sept. 20, 1873, in Florence. Italian astronomer. Donati studied at the University of Pisa and obtained the post of assistant at the observatory in Florence. He observed numerous comets and was the first to discover the great comet of 1858, which has been named after him. In 1864 he was appointed director of the observatory. Donati is known for his spectroscopic studies of comets. He founded the Arcetri Astrophysical Observatory near Florence in 1872.
随便看	army network security operations center army network warfare battalion army news features army nomenclature army north armyn pane army nuclear defense laboratory army nuclear power program army nuclear weapons stockpile reliability program army nurse corps army nurse corps association army nursing service army occupational survey program army of bosnia-herzegovina army of club penguin army of darkness army of divine rights army of drinkers army of excellence army office for defense medical army officer army officer selection board army officers wives club of the greater washington area army of freshmen army of god