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Coordinates: 37°08′33″N 122°07′48″W 37.142617999999999, -122.129896

Equinox

• Location & Contact Information
  • Address: 290 Igo Way Boulder Creek CA USA
  • Telephone Number: +1-831-338-2646
  • Official Website: [1]
• Overview

equinox occurs twice a year, when the tilt of the Earths axis is inclined neither away from nor towards the Sun, the Sun being vertically above a point on the Equator. The term equinox can also be used in a broader sense, meaning the date when such a passage happens.The name equinox is derived from the Latin aequus (equal) and nox (night), because around the equinox, the night and day are approximately equally long. It may be better understood to mean that latitudes +L and -L north and south of the equator experience nights of equal length.The word is also used for the same event happening on other planets and in setting up a celestial coordinate system; see 260||240px|Illumination of the Earth by the Sun on the day of an equinox (ignoring twilight). The Earth in its orbit around the Sun causes the Sun to appear on the celestial sphere moving over the ecliptic (red), which is tilted on the Equator (white). Diagram of the Earths seasons as seen from the north. Far right: December Solstice. Diagram of the Earths seasons as seen from the south. Far left: June Solstice. Day arc at 0° latitude (Equator) Day arc at 20° latitude Day arc at 50° latitude Day arc at 70° latitude Day arc at 90° latitude (Pole) }}^[1]

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References