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单词 sidereal clock
释义

Sidereal clock


an astronomical clock regulated to keep sidereal time.
See under Clock, Day, etc.

See also: Clock, Sidereal

sidereal clock


sidereal clock

A clock regulated to measure the sidereal time at an observatory. See also transit circle.

sidereal clock

[sī′dir·ē·əl ′kläk] (horology) A clock set at 0 hours 0 minutes 0 seconds (midnight) as the vernal equinox crosses the meridian; it is the astronomical clock.
ThesaurusSeesidereal time
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