Found 2 items, similar to sidereal year.
English → English
Definition: sidereal year
n : the time for the earth to make one complete revolution
around the sun, relative to the fixed stars
English → English
Definition: Sidereal year
, n. [OE. yer, yeer, [yogh]er, AS. ge['a]r; akin to
OFries. i?r, g?r, D. jaar, OHG. j[=a]r, G. jahr, Icel. [=a]r,
Dan. aar, Sw. [*a]r, Goth. j?r, Gr. ? a season of the year,
springtime, a part of the day, an hour, ? a year, Zend
y[=a]re year. [root]4, 279. Cf. Hour
1. The time of the apparent revolution of the sun trough the
ecliptic; the period occupied by the earth in making its
revolution around the sun, called the astronomical year;
also, a period more or less nearly agreeing with this,
adopted by various nations as a measure of time, and
called the civil year; as, the common lunar year of 354
days, still in use among the Mohammedans; the year of 360
days, etc. In common usage, the year consists of 365 days,
and every fourth year (called bissextile, or leap year) of
366 days, a day being added to February on that year, on
account of the excess above 365 days (see Bissextile
Of twenty year of age he was, I guess. --Chaucer.
Note: The civil, or legal, year, in England, formerly
commenced on the 25th of March. This practice continued
throughout the British dominions till the year 1752.
2. The time in which any planet completes a revolution about
the sun; as, the year of Jupiter or of Saturn.
3. pl. Age, or old age; as, a man in years. --Shak.
, the time of the earth's revolution from
perihelion to perihelion again, which is 365 days, 6
hours, 13 minutes, and 48 seconds.
A year's mind
(Eccl.), a commemoration of a deceased
person, as by a Mass, a year after his death. Cf. A month's mind
, under Month
. See Bissextile
. See under Canicular
, the year adopted by any nation for the
computation of time.
Common lunar year
, the period of 12 lunar months, or 354
, each year of 365 days, as distinguished from
, or Intercalary lunar year
, the period of
13 lunar months, or 384 days.
(Com.), the year by which accounts are
reckoned, or the year between one annual time of
settlement, or balancing of accounts, and another.
. See Platonic year
, under Platonic
, Julian year
. See under Gregorian
. See Leap year
, in the Vocabulary.
Lunar astronomical year
, the period of 12 lunar synodical
months, or 354 days, 8 hours, 48 minutes, 36 seconds.
. See under Lunisolar
. See Anomalistic year
, Sabbatical year
. See under Platonic
, the time in which the sun, departing from
any fixed star, returns to the same. This is 365 days, 6
hours, 9 minutes, and 9.3 seconds.
. See under Tropical
Year and a day
(O. Eng. Law), a time to be allowed for an
act or an event, in order that an entire year might be
secured beyond all question. --Abbott.
Year of grace
, any year of the Christian era; Anno Domini;
A. D. or a. d.