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Hasil cari dari kata atau frase: equinoctial line (0.01982 detik)
Found 2 items, similar to equinoctial line.
English → English (WordNet)
Definition: equinoctial line
equinoctial line
n : the great circle on the celestial sphere midway between the
celestial poles [syn:
celestial equator,
equinoctial circle
,
equinoctial]
English → English (gcide)
Definition: equinoctial line
Equator
\E*qua"tor\, n. [L. aequator one who equalizes: cf. F.
['e]quateur equator. See
Equate.]
1. (Geog.) The imaginary great circle on the earth's surface,
everywhere equally distant from the two poles, and
dividing the earth's surface into two hemispheres.
[1913 Webster]
2. (Astron.) The great circle of the celestial sphere,
coincident with the plane of the earth's equator; -- so
called because when the sun is in it, the days and nights
are of equal length; hence called also the
equinoctial,
and on maps, globes, etc., the
equinoctial line.
[1913 Webster]
Equator of the sun or
Equator of a planet (Astron.), the
great circle whose plane passes through through the center
of the body, and is perpendicular to its axis of
revolution.
Magnetic equator. See
Aclinic.
[1913 Webster]
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