Julian year

Julian year
Julian Jul"ian (?; 277) a. [L. Julianus, fr. Julius. Cf. {July}, {Gillian}.] Relating to, or derived from, Julius C[ae]sar. [1913 Webster]

{Julian calendar}, the calendar as adjusted by Julius C[ae]sar, in which the year was made to consist of 365 days, each fourth year having 366 days.

{Julian epoch}, the epoch of the commencement of the Julian calendar, or 46 b. c.

{Julian period}, a chronological period of 7,980 years, combining the solar, lunar, and indiction cycles (28 x 19 x 15 = 7,980), being reckoned from the year 4713 B. C., when the first years of these several cycles would coincide, so that if any year of the period be divided by 28, 19, or 15, the remainder will be the year of the corresponding cycle. The Julian period was proposed by Scaliger, to remove or avoid ambiguities in chronological dates, and was so named because composed of Julian years.

{Julian year}, the year of 365 days, 6 hours, adopted in the Julian calendar, and in use until superseded by the Gregorian year, as established in the reformed or Gregorian calendar. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

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  • Julian year — Year 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… …   The Collaborative International Dictionary of English

  • julian year — noun Usage: usually capitalized J : the year of exactly 365 days, 6 hours adopted in the Julian calendar * * * Julian year see under ↑year • • • Main Entry: ↑Julian Julian year The year according to the Julian calendar (introduced by Julius… …   Useful english dictionary

  • Julian year — A Julian year can refer to:* The Julian year (astronomy) is a time interval of exactly 365.25 days, used in astronomy. * The Julian year (calendar) is a year in the Julian calendar which has started on different days, at different times, in… …   Wikipedia

  • Julian year (astronomy) — In astronomy, a Julian year (symbol: a) is a unit of measurement of time defined as exactly 365.25 days of 86,400 SI seconds each, totalling 31,557,600 seconds. That is the average length of the year in the Julian calendar used in Western… …   Wikipedia

  • Julian year — noun a) (history) A year in the old Julian calendar (which started on different dates). b) (astronomy) An average year of 365 days and six hours, used for convenience of quick calculations, as opposed to a calendar year of either 365 or 366 days …   Wiktionary

  • Julian year — (a)    the average length of the year in the Julian calendar, equal to exactly 365.25 days. See year2. Astronomers use Julian years in computing the motions of planets and other bodies of the Solar System. This simplifies their calculations, but… …   Dictionary of units of measurement

  • Julian year — calendar established by Julius Caesar in 46 B.C. which has 365 days in a year and 366 every leap year …   English contemporary dictionary

  • Julian — Jul ian (?; 277) a. [L. Julianus, fr. Julius. Cf. {July}, {Gillian}.] Relating to, or derived from, Julius C[ae]sar. [1913 Webster] {Julian calendar}, the calendar as adjusted by Julius C[ae]sar, in which the year was made to consist of 365 days …   The Collaborative International Dictionary of English

  • Julian calendar — Julian Jul ian (?; 277) a. [L. Julianus, fr. Julius. Cf. {July}, {Gillian}.] Relating to, or derived from, Julius C[ae]sar. [1913 Webster] {Julian calendar}, the calendar as adjusted by Julius C[ae]sar, in which the year was made to consist of… …   The Collaborative International Dictionary of English

  • Julian epoch — Julian Jul ian (?; 277) a. [L. Julianus, fr. Julius. Cf. {July}, {Gillian}.] Relating to, or derived from, Julius C[ae]sar. [1913 Webster] {Julian calendar}, the calendar as adjusted by Julius C[ae]sar, in which the year was made to consist of… …   The Collaborative International Dictionary of English

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