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Noon
(redirected from Solar noon)

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noon [nün]
(astronomy)
The instant at which a time reference is over the upper branch of the reference meridian.
Noon 

the moment at which, for a given point on earth, the center of the sun (the true sun or the mean sun) is in the upper culmination. The apparent noon corresponds to a meridian transit by the true sun, while mean noon corresponds to a transit by the mean sun. The time at which noon occurs depends on the geographic longitude. Noon begins one hour later for every 15° of longitude to the west.
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Even when you eliminate artificial time adjustments such as daylight-saving time, solar noon and clock noon usually are not the same and the length of day can vary, running as much as 30 seconds "long" this time of year.
Solar rhythms on offbeat path by The Register-Guard (Eugene, OR)
Both orientations will suffer lower irradiance around solar noon due to an increased incident angle when the sun is from south.
Performance of flat-plate collectors with two-positional active ... by Tomson, Teolan; Tamm, Gunnar / Proceedings of the Estonian Academy of Sciences: Engineering
Solar noon is when the sun is half way in time--between sunrise and sunset at your location and is therefore called local noon.
Innovative astronomy programs for camp by Jackson, Eric / Camping Magazine
 
 
 
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