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“longitudes”
In geography and astronomy, length; the angular distance east or west of the prime meridian that stretches from the north pole to the south pole and passes through Greenwich, England: Longitude is measured in degrees, minutes, and seconds.
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“longitudes”
The angular distance in degrees that a celestial object lies east or west of Greenwich Meridian, or the meridian passing through Greenwich (Greater London borough on the Thames in England: The geocentric longitude was internationally adopted as the Earth's zero of longitude in 1884.
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centro-, centr-, centri-, kentro-
(page 7)
geo-, ge- +
(page 5)
-tude
(page 2)
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“longitudes”
The angular distance measured along the earth's equator between the meridian passing through the point and the Greenwich Meridian or zero meridian: In her astronomy class, Alice learned that a longitude was any imaginary line at right angles to the equator of the planet Earth and which went through the North and South Poles.
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Astronomy and related astronomical terms
(page 14)
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“longitudes”
Longitude measured (in degrees) along the ecliptic to the east from the vernal equinox: The Symbol for the celestial longitude is the Greek letter λ or lambda.
The angular distance between a celestial body and the first point of Aries, measured along the ecliptic.
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Astronomy and related astronomical terms
(page 6)