| Dictionary, Encyclopedia and Thesaurus - The Free Dictionary 3,901,306,913 visitors served. |
Dictionary/ thesaurus | Medical dictionary | Legal dictionary | Financial dictionary | Acronyms | Idioms | Encyclopedia | Wikipedia encyclopedia | ? |
Gill, David |
Also found in: Wikipedia | 0.01 sec. |
|
|
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. REFERENCESSeleshnikov, S. I. Astronomiia i kosmonavtika. Kiev, 1967.Pannekouk, A. Istoriia astronomii. Moscow, 1966. (Translated from English.) Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content. |
|
| Encyclopedia |
| Free Tools: |
For surfers:
Free toolbar & extensions |
Word of the Day |
Help
For webmasters: Free content | Linking | Lookup box | Double-click lookup |
|---|