Look up: equinox

1. Equinox
   The equinoxes are times at which the center of the Sun is directly above the Earth's equator. The day and night would be of equal length at that time, if the Sun were a point and not a disc, and if there were no atmospheric refraction. Given the apparent disc of the Sun, and the Earth's atmospheric refraction, day and night actually become equal at a point within a few days of each equinox. The vernal equinox marks the beginning of spring in the northern hemisphere, and the autumnal equinox mark…
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2. Equinox
   Roughly March 22 and September 22, when day and night are equal in length. They are celebrated (in the northern hemisphere) as the Sabbats of Eostara and Mabon.
   Found on http://www.encyclo.co.uk/local/20074
   
   
3. Equinox
   Event which occurs twice a year when the sun is exactly over the Earth`s center, the Equator. On this day the hours of light and darkness are equal in length.
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4. equinox
   [n] - either of two times of the year when the sun crosses the plane of the earth`s equator and day and night are of equal length
   Found on http://www.webdictionary.co.uk/definitio
   
   
5. Equinox
   The equinoxes are the two points at which the ecliptic intersects with the celestial equator. The Vernal equinox (or First Point of Aries) is where the ecliptic crosses the celestial equator from south to north, the Sun reaches this point around the 21st March. The opposite equinox, the autumnal equ...
   Found on http://www.delscope.demon.co.uk/astronom
   
   
6. Equinox
   This is the time when the Sun crosses the celestial equator. There are two equinoxes; Vernal (Spring), around March 21st and Autumnal (Autumn) around September 23rd. On these dates, day and night are equal. Actual dates and times vary due to the Earth's precession.
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7. equinox
   the moment when, or the point at which, the sun apparently crosses the celestial Equator Category: The cosmos
   Found on http://www.mijnwoordenboek.nl/definition
   
   
8. Equinox
   The date and time when the sun crosses the equator. On that day, the daytime and nightime are both very close to 12 hours. This happens about March 21 and September 21. Many religious holy days are synchronized to the equinoxes, including the Jewish Passover, and Christian Easter.
   Found on http://www.stpeter.dircon.co.uk/pages/gl
   
   
9. Equinox
   E'qui·nox noun [ Middle English equinoxium , equenoxium , Latin aequinoctium ; aequus equal + nox , noctis , night: confer French équinoxe . See Equal , and Night .] 1. The ti...
   Found on http://www.encyclo.co.uk/webster/E/60
   
   
10. equinox
    noun either of two times of the year when the sun crosses the plane of the earth`s equator and day and night are of equal length
    Found on http://wordnetweb.princeton.edu/perl/web
    
    
11. Equinox
    • (n.) Equinoctial wind or storm. • (n.) The time when the sun enters one of the equinoctial points, that is, about March 21 and September 22. See Autumnal equinox, Vernal equinox, under Autumnal and Vernal.
    Found on http://thinkexist.com/dictionary/meaning
    
    
12. Equinox
    (from the article `Figes, Eva`) ...for various publishing companies until 1967, when she became a full-time writer. Her poetic novels explore the inner lives of the characters, ...
    Found on http://www.britannica.com/eb/a-z/e/39
    
    
13. equinox
    either of the two moments in the year when the Sun is exactly above the equator and day and night are of equal length; also, either of the two ... [6 related articles]
    Found on http://www.britannica.com/eb/a-z/e/39
    
    
14. equinox
    equinox Either of the two annual crossings of the equator by the sun, once in each direction, when the length of day and night are approximately equal everywhere on earth. The equinoxes occur around March 21 and September 23.
    Found on http://www.wordinfo.info/words/index/inf
    
    
15. Equinox
    The two times of the year when the sun crosses the equator and night and day are of equal length; usually occurs on March 21st (spring equinox) and September 23 (fall equinox).
    Found on http://www1.eere.energy.gov/solar/solar_
    
    
16. Equinox
    Two days during the year when the declination of the Sun is at the equator. The September equinox occurs on September 22 or 23. The March equinox occurs on March 20 or 21. On these days, all locations on our planet (except the poles) experience equal (12 hour) day and night.
    Found on http://www.physicalgeography.net/physgeo
    
    
17. EQUINOX
    The point at which the ecliptic intersects the celestial equator. Days and nights are most nearly equal in duration. In the Northern Hemisphere, the vernal equinox falls on or about March 20 and the autumnal equinox on or about September 22. Related term: Dave's Dictionary
    Found on http://www.weather.com/glossary/e.html
    
    
18. Equinox
    Either of two occasions during the year when the apparent sun's path crosses the plane of the Earth's equator. Also the date when the sun is directly overhead at noon on the equator, occurring on or around both March 21 and September 22, the former is the vernal equinox and the latter the autumnal e...
    Found on http://www.islandnet.com/~see/weather/ge
    
    
19. Equinox
    Either of the two points of intersection of the Sun's apparent annual path and the plane of the Earth's equator. In the Northern Hemisphere the spring (vernal) equinox falls on or about 21 March, and the autumnal equinox on or about 22 September.
    Found on http://nsidc.org/arcticmet/glossary/equi
    
    
20. equinox
    equinox (ē'kwinoks) , either of two points on the celestial sphere where the ecliptic and the celestial equator intersect. The vernal equinox, 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. Thi...
    Found on http://www.infoplease.com/ce6/sci/A08175
    
    
21. Equinox
    An equinox is the precise time when the sun enters one of the equinoctial points, or the first point of Aries about the 21st of March, and the first point of Libra about the 23rd of September, making the day and night of equal length all over the world. At all other times the lengths of the day and ...
    Found on http://www.probertencyclopaedia.com/brow
    
    
22. equinox
    Time when the Sun is directly overhead at the Earth's Equator and consequently day and night are of equal length at all latitudes. This happens twice a year: 20 or 21 March is the spring, or vernal, equinox and 22 or 23 September is the autumn equinox. The variation in day lengths occurs because the Earth is tilted on its axis with respect ...
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23. equinox
    (L: equi=equal; noce=night) the time when the length of day equals night. The vernal equinox is on 21 March, and the autumnal equinox about 22 September.
    Found on http://www.seafriends.org.nz/books/gloss
    
    
24. Equinox
    Either of the two instants during the year when the Sun is directly over the Earth's equator. In the spring in the Northern Hemisphere, the vernal equinox occurs around March 21st, and in the fall the autumnal equinox happens around September 21st (although the specific dates vary slightly from year...
    Found on http://www.astrosociety.org/education/pu
    
    
25. Equinox
    An `equinox` occurs twice a year, when the tilt of the Earth`s axis is inclined neither away from nor towards the Sun, the center of the Sun being in the same plane as the Earth`s equator. The term equinox can also be used in a broader sense, meaning the date when such a passage happens. The ...
    Found on http://en.wikipedia.org/wiki/Equinox