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Sidereal time ("
sidereal"
pronounced /saɪˈdɪəriəl, sə-/ sy-DEER-ee-əl, sə-) is a
system of
timekeeping used
especially by astronomers.
Using sidereal...
- A
sidereal year (/saɪˈdɪəri.əl/, US also /sɪ-/; from
Latin sidus 'asterism, star'), also
called a
sidereal orbital period, is the time that
Earth or another...
- up
sidereal in Wiktionary, the free dictionary.
Sidereal,
meaning "of the stars", may
refer to:
Sidereal time
Sidereal day
Sidereal month Sidereal year...
- In astrology,
sidereal and
tropical are
terms that
refer to two
different systems of
ecliptic coordinates used to
divide the
ecliptic into
twelve "signs"...
-
celestial objects in general, the
orbital period typically refers to the
sidereal period,
determined by a 360°
revolution of one body
around its primary...
- Anti-
sidereal time and extended-
sidereal time are
artificial time
standards used to
analyze the
daily variation in the
number of
cosmic rays received...
- not the
distinction between sidereal and
tropical months) were
first recognized in
Babylonian lunar astronomy. The
sidereal month is
defined as the Moon's...
-
calendar of this type is
called a
sidereal solar calendar. The mean
calendar year of such a
calendar approximates the
sidereal year.
Leaping from one lunation...
-
currently less than the
sidereal year and its
duration is very
close to the
Julian year of 365.25 days. The
Gaussian year is the
sidereal year for a planet...
-
distinguished from the
sidereal day,
which is one
complete rotation in
relation to
distant stars and is the
basis of
sidereal time. In the case of a tidally...
