Документ взят из кэша поисковой машины. Адрес оригинального документа : http://www.astronet.ru/db/xware/msg/1160615
Дата изменения: Mon Sep 8 20:02:15 2003
Дата индексирования: Tue Dec 25 21:47:41 2007
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Beijing Ancient Observatory
Astronomy Picture of the Day
    


Beijing Ancient Observatory
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Beijing Ancient Observatory
Credit: W. H. Jackson, U.S. Library of Congress, WTC Collection
Explanation: Did observatories exist before telescopes? One example that still stands today is the Beijing Ancient Observatory in China. Starting in the 1400s astronomers erected large instruments here to enable them to measure star and planet positions with increasing accuracy. Pre-telescopic observatories throughout the world date back to before recorded history, providing measurements that helped to determine when to plant crops, how to navigate ships, and when religious ceremonies should occur. The above hand-painted lantern slide was originally taken in 1895.

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Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (USRA)
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NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.

Based on Astronomy Picture Of the Day

Publications with keywords: Observatory - ancient
Publications with words: Observatory - ancient
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