OmniMediaGroup at 14:06, 3 October 2012

2012-10-03T14:06:33Z

OmniMediaGroup: /* Further reading */

2012-10-03T14:04:56Z

OmniMediaGroup at 14:03, 3 October 2012

2012-10-03T14:03:55Z

OmniMediaGroup: A '''year''' (from Old English ''gēar'') is the orbital period of the Earth moving around the Sun. For an observer on the Earth, this corresponds to the

2012-10-03T14:02:10Z

A '''year''' (from Old English ''gēar'') is the orbital period of the Earth moving around the Sun. For an observer on the Earth, this corresponds to the

Centiare at 01:32, 28 December 2006

2006-12-28T01:32:23Z

New page

'''Year'''

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	{{Wiktionary}}		{{Wiktionary}}
	A '''year''' (from [[Old English language\|Old English]] ''[[Jēram\|gēar]]'') is the [[orbital period]] of the [[Earth]] moving around the [[Sun]]. For an observer on the Earth, this corresponds to the period it takes the Sun to complete one course throughout the [[zodiac]] along the [[ecliptic]].		A '''year''' (from [[Old English language\|Old English]] ''[[Jēram\|gēar]]'') is the [[orbital period]] of the [[Earth]] moving around the [[Sun]]. For an observer on the Earth, this corresponds to the period it takes the Sun to complete one course throughout the [[zodiac]] along the [[ecliptic]].

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 [[Category:Orders of magnitude (time)]]
 [[Category:Units of time]]

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−	'''Year'''	+	A '''year''' (from [[Old English language\|Old English]] ''[[Jēram\|gēar]]'') is the [[orbital period]] of the [[Earth]] moving around the [[Sun]]. For an observer on the Earth, this corresponds to the period it takes the Sun to complete one course throughout the [[zodiac]] along the [[ecliptic]].
		+
		+	In astronomy, the [[Julian year (astronomy)\|Julian year]] is a [[unit of time]], defined as 365.25 [[day]]s of {{gaps\|86\|400}} [[second\|SI second]]s each (no [[leap second]]s).<ref>[[International Astronomical Union]] "[http://www.iau.org/science/publications/proceedings_rules/units/ SI units]" accessed February 18, 2010. (See Table 5 and section 5.15.) Reprinted from George A. Wilkins & IAU Commission 5, [http://www.iau.org/static/publications/stylemanual1989.pdf "The IAU Style Manual (1989)"] (PDF file) in ''[[IAU Transactions]]'' Vol. XXB</ref>
		+
		+	There is no universally accepted symbol for the year as a unit of time. The [[International System of Units]] does not propose one. A common abbreviation in international use is '''a''' (for Latin ''[[:wikt:annus\|annus]]''), in English also '''y''' or '''yr'''.
		+
		+	Due to the Earth's [[axial tilt]], the course of a year sees the passing of the [[season]]s, marked by changes in [[weather]], hours of [[daylight]], and consequently [[vegetation]] and [[Fertility (soil)\|fertility]].
		+	In [[temperate]] and [[Subpolar climate\|subpolar]] regions, generally four seasons are recognized: ''[[Spring (season)\|spring]]'', ''[[summer]]'', ''[[autumn]]'' and ''[[winter]]'', astronomically marked by the Sun reaching the points of [[equinox]] and [[solstice]], although the climatic seasons [[Seasonal lag\|lag behind]] their astronomical markers.
		+	In some [[tropics\|tropical]] and [[subtropical]] regions it is more common to speak of the [[wet season\|rainy]] (or wet, or [[monsoon]]) season versus the [[dry season]].
		+
		+	A [[calendar year]] is an approximation of the Earth's orbital period in a given [[calendar]].
		+	A calendar year in the [[Gregorian calendar]] (as well as in the [[Julian calendar]]) has either 365 ([[common year]]s) or 366 ([[leap year]]s) days.
		+
		+	The word "year" is also used of periods loosely associated but not strictly identical with either the astronomical or the calendar year, such as the [[seasonal year]], the [[fiscal year]] or the [[academic year]], etc.
		+	By extension, the term ''year'' can mean the orbital period of any [[planet]]: for example, a "Martian year" is the time in which Mars completes its own orbit. The term is also applied more broadly to any long period or cycle, such as the "[[Great Year]]".<ref>[[OED]], s.v. "year", entry 2.b.: "''transf.'' Applied to a very long period or cycle (in chronology or mythology, or vaguely in poetic use)."</ref>

Year - Revision history

OmniMediaGroup at 14:06, 3 October 2012

OmniMediaGroup: /* Further reading */

OmniMediaGroup at 14:03, 3 October 2012

OmniMediaGroup: A '''year''' (from Old English ''gēar'') is the orbital period of the Earth moving around the Sun. For an observer on the Earth, this corresponds to the

Centiare at 01:32, 28 December 2006