资料来源 : pyDict
位置推算历
资料来源 : Webster's Revised Unabridged Dictionary (1913)
Ephemeris \E*phem"e*ris\, n.; pl. {Ephemerides}. [L., a diary,
Gr. ?, also, a calendar, fr. ?. See {Ephemera}.]
1. A diary; a journal. --Johnson.
2. (Anat.)
(a) A publication giving the computed places of the
heavenly bodies for each day of the year, with other
numerical data, for the use of the astronomer and
navigator; an astronomical almanac; as, the ``American
Ephemeris and Nautical Almanac.''
(b) Any tabular statement of the assigned places of a
heavenly body, as a planet or comet, on several
successive days.
3. (Literature) A collective name for reviews, magazines, and
all kinds of periodical literature. --Brande & C.
资料来源 : WordNet®
ephemeris
n : an annual publication containing astronomical tables that
give the positions of the celestial bodies throughout the
year; "today computers calculate the ephemerides"
[also: {ephemerides} (pl)]