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Perigean

   Also found in: Encyclopedia 0.01 sec.
per·i·gee  (pr-j)
n.
1. The point nearest the earth's center in the orbit of the moon or a satellite.
2. The point in any orbit nearest to the body being orbited.

[French périgée, from Medieval Latin perigum, from Late Greek perigeion : Greek peri-, peri- + Greek g, earth.]

peri·geal (-jl), peri·gean (-jn) adj.
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perigee


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Overlapping of the cycles of spring and perigean tides every 206 days results in an annual progression of 1.
When the perigean and spring tides coincide in June and December, the diurnal inequality causes one of the daily tides to be especially strong.
 
 
 
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