David Gill

Gill, David

Born June 12, 1843, in Aberdeen, Scotland; died Jan. 24, 1914, in London. Scottish astronomer.

From 1879 to 1907 he was the director of an observatory on the Cape of Good Hope. In 1880 he determined the solar parallax (from his observations of Mars in great opposition made in 1877) and made a photographic study of the southern sky (1885-89), which was used by the Dutch astronomer J. C. Kapteyn in cataloging the stars of the southern sky (1896). With the help of a heliometer Gill measured stellar parallax and observed the transit of Venus across the solar disk (1874); he also directed geodetic work in South America.

REFERENCES

Seleshnikov, S. I. Astronomiia i kosmonavtika. Kiev, 1967.
Pannekouk, A. Istoriia astronomii. Moscow, 1966. (Translated from English.)

单词	david gill
释义	David Gill Gill, David Born June 12, 1843, in Aberdeen, Scotland; died Jan. 24, 1914, in London. Scottish astronomer. From 1879 to 1907 he was the director of an observatory on the Cape of Good Hope. In 1880 he determined the solar parallax (from his observations of Mars in great opposition made in 1877) and made a photographic study of the southern sky (1885-89), which was used by the Dutch astronomer J. C. Kapteyn in cataloging the stars of the southern sky (1896). With the help of a heliometer Gill measured stellar parallax and observed the transit of Venus across the solar disk (1874); he also directed geodetic work in South America. REFERENCES Seleshnikov, S. I. Astronomiia i kosmonavtika. Kiev, 1967. Pannekouk, A. Istoriia astronomii. Moscow, 1966. (Translated from English.)
随便看	diseconomy of scale disection dised disedge disedify disee diseg disegno disegno di legge disegno industriale industrial design dis ekonomik iliskiler kurulu diselder diselenide disel fuel disem disemb disembark disembarkation disembarkation day disembarkations disembarkation schedule disembarked disembarked from disembark from disembark from (something)