Term
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Definition
Distance north or south of the equator measured in degrees up to 90 degrees |
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Term
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Definition
distance measured in degrees east or west from
an imaginary line (called the prime meridian) that
goes from the North Pole to the South Pole and
that passes through Greenwich, England |
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Term
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Definition
| the meridian of 0 degrees longitude which runs through the original site of the Royal Observatory at Greenwich, England, and from which other longitudes are reckoned |
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Term
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Definition
| the great circle of the celestial sphere whose plane is perpendicular to the axis of the earth |
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Term
International Data line
[image] |
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Definition
| an arbitrary line approximately along the 180th meridian designated as the place where each calendar day begins |
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Term
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Definition
| a circle graduated to degrees or quarters and printed on a chart to show direction |
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Term
Greenwich England
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Definition
| a borough in SE London, England: located on the prime meridian from which geographic longitude is measured |
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Term
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Definition
| Global Positioning System: a global system of U.S. navigational satellites develpoed to provide precisepositional and velocity data and global time synchronization for air, sea, and land travel. |
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