Equinox - Wikipedia, the free encyclopedia
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An equinox occurs twice a year, when the tilt of the Earth's axis is inclined neither away from nor towards the Sun, the Sun being vertically above a point on the Equator. The term equinox can als...
en.wikipedia.org/wiki/Equinox
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Calculates accurate dates and times of equinoxes and solstices (winter, spring, summer, fall) and of the Celtic cross-quarter days for Wiccan and pagan festivals. ... This software (for Windows) is for calculating the dates and times of equinoxes, ... This occurs between the spring equinox and the summer solstice, and the mean...
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www.hermetic.ch/eqsol/eqsol.htm
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The dates of maximum tilt of the Earth's equator correspond to the summer solstice and winter solstice, and the dates of zero tilt to the vernal equinox and autumnal equinox.
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scienceworld.wolfram.com/astronomy/AutumnalEquinox.html
scienceworld.wolfram.com/astronomy/AutumnalEquinox.html
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The September equinox occurs at 03:09 (or 3:09am) Coordinated Universal Time (UTC) on September 23, 2010. It is also referred to as the autumnal or fall equinox in the northern hemisphere, as well as the spring or vernal equinox in ... There are a few explanations on why the equinox dates differ in the Gregorian calendar.
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www.timeanddate.com/calendar/september-equinox.html
www.timeanddate.com/calendar/september-equinox.html
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The vernal equinox occurs in the spring while the autumnal equinox occurs during fall (autumn). These terms are derivatives of Latin. It is important to note that the northern hemisphere’s vernal equinox is in March while its autumnal equinox is ... Easter Sunday in USA – About the holiday, and the dates it occured...
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www.timeanddate.com/calendar/march-equinox.html
www.timeanddate.com/calendar/march-equinox.html
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Dates and Times for Equinoxes, Solstices and Perihelion/Aphelion ... Autumnal Equinox September 22 21:18 ... Thus, 1100 UTC is the same as 6:00 AM EST and 7:00 AM EDT. When converting zone time to or from UTC, dates must be properly taken into account. For example, 21 March at 0200 UTC is the same as 20 March at 2100 or 9:00...
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www.islandnet.com/~see/weather/almanac/seasondate.htm
www.islandnet.com/~see/weather/almanac/seasondate.htm
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Equinoxes And Solstices; 2000-2010 ... Source: U.S. Naval Observatory...
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www.erh.noaa.gov/box/equinox.html
www.erh.noaa.gov/box/equinox.html
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In March, as the Sun is moving northwards along the ecliptic, this is called the vernal equinox and in September as the Sun is moving southwards we refer to it as the autumnal equinox. ... Why do the dates of the vernal and autumnal equinox not occur on the days when day and night are equal?
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www.nmm.ac.uk/explore/astronomy-and-time/time-facts/equ...
www.nmm.ac.uk/explore/astronomy-and-time/time-facts/equinoxes-and-solstices
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The Autumnal Equinox signals the end of the summer months and the beginning of winter. At this time of year, days have been shortening since the Summer Solstice some three months earlier, and the Equinox is the point where nights reach the same length as days.
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www.glyphweb.com/esky/concepts/autumnalequinox.html
www.glyphweb.com/esky/concepts/autumnalequinox.html
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