Vernal Equinox 2013 + 2 Event Cache
TeamDAAK: Time for this to be put away
Hidden
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Saturday, March 23, 2013
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We have the big party room at the Pizza Ranch reserved from 11:00 am to 1:00 pm CT.
No purchase is required.
All purchases will be made at the counter upon entry.
Use the provided link to get more information on this restaurant.
I was recently at a cache event at a Pizza Ranch in Kansas City and a line can quickly form, but quickly dissipate. I recommend being earlier, rather than later, if you intend to eat there.
An equinox occurs twice a year (around 20 March and 22 September), 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 name "equinox" is derived from the Latin aequus (equal) and nox (night), because around the equinox, the night and day have approximately equal length.
At an equinox, the Sun is at one of two opposite points on the celestial sphere where the celestial equator (i.e. declination 0) and ecliptic intersect. These points of intersection are called equinoctial points: classically, the vernal point (RA = 00h 00m 00s and longitude = 0º) and the autumnal point (RA = 12h 00m 00s and longitude = 180º). By extension, the term equinox may denote an equinoctial point.
The equinoxes are the only times when the subsolar point is on the Equator. This point (the place on the Earth's surface where the center of the Sun can be observed exactly overhead) crosses the Equator moving northward at the March equinox and crosses the Equator moving southward at the September equinox.
The date at which sunset and sunrise becomes exactly 12 hours apart is known as the equilux. Because times of sunset and sunrise vary with an observer's geographic location (longitude and latitude), the equilux likewise depends on location and does not exist for locations sufficiently close to the Equator. The equinox, however, is a precise moment in time which is common to all observers on Earth.
The Equilux for the Omaha area is, according to the US Naval Observatory, approximately 17 March 2013.
Additional Hints
(Decrypt)
3010 F. 84gu Fgerrg, Bznun, AR
402.934.4888
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