홈 > Term: Johann Franz Encke
Johann Franz Encke
A celebrated German astronomer, born at Hamburg; determined the sun's distance, and the orbit of the comet of 1680; calculated the time of the revolution of the comet which now bears his name, and which appeared in 1818; determined also the distance of the sun by the two transits of Venus in 1761 and 1769 (1791-1865).
- 품사: noun
- 분야/도메인: 언어
- 카테고리: Encyclopedias
- Organization: Project Gutenberg
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(Sydney, Australia)