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Hasil cari dari kata atau frase: Sidereal(0.00835 detik)
Found 2 items, similar to Sidereal.
English → English (WordNet)
adj 1: of or relating to the stars or constellations; “sidereal
bodies”; “the sidereal system”
2: (of divisions of time) determined by daily motion of the
stars; “sidereal time” [ant: civil]
English → English (gcide)
Sidereal \Si*de"re*al\, a. [L. sidereus, from sidus, sideris, a
constellation, a star. Cf. Sideral, Consider, Desire.]
1. Relating to the stars; starry; astral; as, sidereal
2. (Astron.) Measuring by the apparent motion of the stars;
designated, marked out, or accompanied, by a return to the
same position in respect to the stars; as, the sidereal
revolution of a planet; a sidereal day.
Sidereal clock, day, month, year. See under Clock,
Sideral time, time as reckoned by sideral days, or, taking
the sidereal day as the unit, the time elapsed since a
transit of the vernal equinox, reckoned in parts of a
sidereal day. This is, strictly, apparent sidereal time,
mean sidereal time being reckoned from the transit, not of
the true, but of the mean, equinoctial point.