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Vernal equinox

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	Year - Wikipedia, the free encyclopedia
		A seasonal year is the time between successive recurrences of a seasonal event such as the flooding of a river, the migration of a species of bird, the flowering of a species of plant, the first frost, or the first scheduled game of a certain sport.
		A tropical year is the time for the Earth to complete one revolution with respect to the framework provided by the intersection of the ecliptic (the plane of the orbit of the Earth) and the plane of the equator (the plane perpendicular to the rotation axis of the Earth).
		Because of the precession of the equinoxes, this framework moves slowly westward along the ecliptic with respect to the fixed stars (with a period of about 26,000 tropical years); as a consequence, the Earth completes this year before it completes a full orbit as measured in a fixed reference frame.
	en.wikipedia.org /wiki/Year (1920 words)

	Tropical year - Wikipedia, the free encyclopedia
		A tropical year is the length of time that the Sun, as viewed from the Earth, takes to return to the same position along the ecliptic (its path among the stars on the celestial sphere) relative to the equinoxes and solstices.
		Because the vernal equinox moves back along the ecliptic due to precession, a tropical year is shorter than a sidereal year (in 2000, the difference was 20.409 minutes; it was 20.400 min in 1900).
		As the equinox completes a full circle with respect to the perihelion (in about 21,000 years), the length of the tropical year as defined with reference to a specific point on the ecliptic oscillates around the mean tropical year.
	en.wikipedia.org /wiki/Tropical_year (1940 words)

	Leap year
		The leap year (or intercalary year or bissextile year) is a method of keeping the calendar year in sync with the seasons.
		Such proposals have not been accepted, since the aim of the Gregorian calendar reform was to keep the vernal equinox steady in the calendar and the Gregorian calendar achieves this long-term goal well enough when considering the changing length of the vernal equinox year in the foreseeable future.
		Notice that the leap year does not have anything at all to do with leap seconds, which are added occasionally based on actual observations of the rotation of the Earth around its axis.
	www.ebroadcast.com.au /lookup/encyclopedia/le/Leap_year.html (650 words)

	Year - Biocrawler (Site not responding. Last check: 2007-10-29)
		A seasonal year is the time between successive recurrences of a seasonal event such as the flooding of a river, the migration of a species of bird, the flowering of a species of plant, the first frost, or the hottest day of the year.
		This is the normal meaning of the unit "year" (symbol "a") used in various scientific contexts.
		It differs from the sidereal year for stars north or south of the ecliptic because of the significant angle (23.5°) between Earth's celestial equator and the ecliptic.
	www.biocrawler.com /encyclopedia/Year (1584 words)

	eSky: Vernal Equinox
		As days lengthen and nights shorten after the Winter Solstice, the Vernal Equinox marks the point where day and night are of the same length.
		There are two equinoxes each year, with the vernal equinox usually occurring on 21 March.
		Vernal comes originally from the Latin word for 'bloom' - it refers to the fact that, in the northern hemisphere, this equinox marks the end of winter and the beginning of spring.
	www.glyphweb.com /esky/concepts/vernalequinox.html (407 words)

	VERNAL EQUINOX
		This moment is known as the vernal equinox in the Northern Hemisphere.
		The vernal equinox, is also known as "the first point of Aries," is the point at which the sun appears to cross the celestial equator from south to north.
		Each Spring Equinox, at the time of the ancient agricultural festival of sowing, sunlight was allowed to enter the length of an open passage from the doorway of the temple over the high altar and into the Holy of Holies.
	www.gurdjieffdominican.com /equinox_spring.htm (574 words)

	Leap year (Site not responding. Last check: 2007-10-29)
		Leap years (which keep the calendar in with the year) should not be confused leap seconds (which keep clock time in sync the day).
		The Gregorian calendar is designed to keep vernal equinox on or close to March 21 so that the date of Easter (celebrated on the Sunday after the day of the Moon that falls on after March 21) remains correct with respect the vernal equinox.
		Leap Year takes the elections of 1988, one of the least interesting political years in my memory, and breaks it down step by step, candidate by candidate, and shows us exactly what was going on in his or her head at each step of the way.
	www.freeglossary.com /Leap_year (1564 words)

	Spring Equinox celebrations of Christianity, Judaism, Neopaganism, etc
		The seasons of the year are caused by the 23.5º tilt of the earth's axis.
		Under the new system, 1582-MAR-21 CE became the date of the vernal equinox, the year 1582 was shortened by ten days, and future centennial years (1600, 1700...2000) were not considered leap years unless they were divisible by 400.
		On the spring equinox, she mated with the solar god and conceived a child that would be born 9 months later on DEC-21: Yule, the winter solstice.
	www.religioustolerance.org /spring_equinox.htm (3277 words)

	Vernal Equinox - Free Encyclopedia of Thelema
		In astronomy, the vernal equinox (spring equinox, March equinox, or northward equinox) is the equinox at the beginning of spring in the northern hemisphere: the moment when the sun appears to cross the celestial equator, heading northward.
		There are two conventions for dealing with this: either the name of the equinox can be changed to the autumnal equinox, or (apparently more commonly) the name is unchanged and it is accepted that it is out of sync with the season.
		A common old wives' tale regarding the vernal equinox is that this is the one day of the year that eggs can be balanced on their end.
	www.egnu.org /thelema/index.php/Vernal_equinox (661 words)

	The Tropical and the Anomalistic Year
		A tropical year is the time it takes the Sun to appear to travel around the sky from a given point of the tropical zodiac back to that same point in the tropical zodiac.
		A mean tropical year can thus be thought of as a constant mean anomalistic year, less a small variable period of time (between 24 and 26 minutes of an hour), which depends for its exact duration upon the position in the ellipse from which we choose to begin our mean tropical year.
		This is because the equinoxes and solstices are determined by the intersection of the plane of the Earth's elliptical orbit and the plane of the Earth's equator.
	www.hermetic.ch /cal_stud/cassidy/tropanom.htm (848 words)

	Geniet: The length of the Seasons
		If the rise (or set) altitudes are the same for solstices/equinoxes, this will provide an equinox date close to the modern definition (although it does not account for the variation due to climatic precession changes).
		In this case the concept of east/west must be known and to reach the modern equinox definition the horizon altitude must be 0º.
		is quite stable over the present years (while the other event years change more) and that is why he thinks that vernal equinox could have been chosen as the start of the year.
	www.iol.ie /~geniet/eng/season.htm (765 words)

	Vernal Equinox
		astronomy, the vernal equinox (spring equinox, march equinox, or northward equinox) is the equinox at the...
		At the Vernal Equinox the sun appears to be moving across the...
		In the southern hemisphere, the vernal equinox corresponds to the center of the Sun crossing the celestial...
	www.inneans.com /festivals/Vernal-equinox.html (698 words)

	History & info - Timeline of interesting calendar facts
		Length of the tropical year, defined as the average interval between vernal equinoxes.
		This calendar year was the objective of the Gregorian calendar reform, which finalized the calendar as we use it today.
		World time is typically adjusted every year by adding what is called a "leap second." Because the time calculated by the position of the sun differs from the time calculated by the atomic standard, it is occasionally necessary to adjust international time standards to match the position of the Earth.
	webexhibits.org /calendars/timeline.html (920 words)

	On the Units of Time, Part III: The Year - TimeZone
		The date of Easter is determined by the vernal equinox and the full moon (more about this later), so it was correct for the designers of the calendar to use the vernal equinox year as the time to optimize the calendar across.
		However, the Julian calendar yielded a vernal equinox year that was slightly long on average, which meant that the actual date the vernal equinox occurred was moving farther and farther away from March 21.
		In addition to modifying the average length of the year, thus stabilizing the date of the vernal equinox, the key feature of the Lilius/Clavius plan was a scheme to settle the date of Easter in a manner that was irrefutably superior.
	www.timezone.com /library/tmachine/tmachine0006 (4095 words)

	THE VERNAL EQUINOX (Site not responding. Last check: 2007-10-29)
		The Spring or Vernal Equinox is a celebration of the rebirth of nature and brings with it the symbols of birth/rebirth.
		The Vernal Equinox, the first official day of Spring, is on or about March 20.
		The vernal equinox has long been a significant event in the lives of agricultural peoples as it symbolizes nature's regeneration, fertility, growth and bounty.
	www.serve.com /shea/germusa/vernal.htm (254 words)

	Vernal (Spring) Equinox
		Translated literally, equinox means "equal night." Because the sun is positioned above the equator, day and night are about equal in length all over the world during the equinoxes.
		A second equinox occurs each year on September 22 or 23; in 2006, it will be on September 22 at 11:03 P.M. EDT (Sept. 23, 03:03 UT*).
		The date is significant in Christianity because Easter always falls on the first Sunday after the first full moon after the vernal equinox.
	www.factmonster.com /spot/riteofspring1.html (412 words)

	Vernal equinox, Platonic year, Vernal Equinox, precession of the equinoxes, great year
		This is known as the precession of the equinoxes.
		If we were to check the sun’s position in the Zodiac on successive Vernal Equinoxes, we would see that it will take approximately 2,150 years for the spring sun to travel through the constellation of Aquarius on its way to Capricorn.
		However, when we observe the position of the sun in the Zodiac on successive Vernal Equinoxes, the westerly movement will appear “steady” as each year passes, because the stars and sun are too far away to be affected by the cycle of the moon.
	www.revealer.com /platonic.htm (1606 words)

	The Equinox
		The Sun in the sky during the Spring and Fall Equinox in the Northern hemisphere.
		On the Spring Equinox the Sun rises exactly in the east travels through the sky for 12 hours and sets exactly in the west.
		On the Equinox this is the motion of the Sun through the sky for everyone on earth.
	solar.physics.montana.edu /YPOP/Classroom/Lessons/Sundials/equinox.html (150 words)

	New Year's Day
		The first day of the new year was moved back to January 1 with the advent of the Gregorian Calendar by Pope Gregory XIII in 1582.
		It was their tradition at that time to celebrate their god of wine, Dionysus, by parading a baby in a basket, representing the annual rebirth of that god as the spirit of fertility.
		The Church finally allowed its members to celebrate the new year with a baby, which was to symbolize the birth of the baby Jesus.
	www.ownerdirect.com /calendar/holidays-explained/newyearsday.htm (554 words)

	Spring - Vernal Equinox
		In the year 2006, the Vernal or Spring Equinox occurs on March 20.
		Eostre was the key symbol of the Vernal Equinox (which was also known as Ostara.) The goddess Eostre was saved by a bird whose wings had become frozen during the winter.
		This is an excellent time of the year to encourage fertility of your mind as well as your body.
	www.crystal-cure.com /equinox-spring.html (279 words)

	Celebrating Spring Equinox - School of the Seasons
		The spring equinox is one of the four great solar festivals of the year.
		The spring equinox is sacred to dawn, youth, the morning star and the east.
		He is the vegetation, dying each year (at harvest) to be reborn in the spring.
	www.schooloftheseasons.com /spring.html (1918 words)

	Year Did You Mean year (Site not responding. Last check: 2007-10-29)
		a mean tropical year near the year 2000
		the average length of a year in the Gregorian calendar
		the average length of a year in the Julian calendar; the light year is based on it; it is 31,557,600 seconds
	www.did-you-mean.com /Year.html (1534 words)

	13sc2 (Site not responding. Last check: 2007-10-29)
		tropical year, is not the result of falsehoods in astronomical textbooks,
		year, then the understanding represented will not only be one-sided but
		> equinox and autumn equinox is different from the interval between autumn equinox
	home.earthlink.net /~scassidy/CALNDR-L/99/FEB/13sc2.html (465 words)

	CalendarHome.com - Year - Calendar Encyclopedia
		Rather than being based on numerical rules, the beginning of the Persian year is marked by the exact moment of the vernal equinox, as precisely determined by astronomical observations from Tehran.
		353, 354 or 355 days — the lengths of regular years in some lunisolar calendars
		365.25 days — the average length of a year in the Julian calendar; the light year is based on it; it is 31,557,600 seconds
	encyclopedia.calendarhome.com /Year.htm (1667 words)

	Thelema Lodge Calendar for March 1998 e.v.
		Vernal Equinox falls on Friday 20th March, at five minutes before noon.
		By communicating together in the mass just as the Priest has done, all of the People present are participating, and lending their Wills to the unified intention of the ritual.
		The only thing for Germany to do is to concentrate the whole of her intelligence and power upon the building and manning of submarines, in such numbers, and of such excellence, that England is starved, and her fleet destroyed.
	www.billheidrick.com /tlc1998/tlc0398.htm (6708 words)

	Koders Search: vernal
		* * In Year 1582, Julian was 10 days ahead of schedule (according to * vernal equinox in northern countries to be on March 21st) and * those days had to be dropped.
		Note * that universal time is the hour angle between 180 degrees * and the fictive sun's meridian measured clockwise.
		* * To correct this error in the length of the year and to bring the * vernal equinox back to March 21, Pope Gregory XIII issued a papal * bull declaring that Thursday October 4, 1582 would be followed by * Friday October 15, 1582 and that centennial years would only be a
	www.koders.com /?s=vernal (1074 words)

	Error in Statement of Tropical Year
		The year as defined above is called the tropical year and it is the year length that defines the repetition of the seasons.
		The value given is not for the mean interval between vernal equinoxes but instead for a "mean tropical year" based on a "fictitious mean sun" as defined by Simon Newcomb et al.
		In the same year (1982) it was revealed that Clavius and Pope Gregory were made aware, prior to their inception of our current calendar in 1582 A.D., of the correctness of a 33-year leap-day cycle for the vernal equinox (see e.g.
	www.hermetic.ch /cal_stud/cassidy/err_trop.htm (1103 words)

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