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altitude

1. The measurement of height, usually given in meters above sea level.

2. The angular distance; usually measured in degrees, above the horizon, from zero degrees at the horizon to 90 degrees at the zenith.

2. The angular distance; usually measured in degrees, above the horizon, from zero degrees at the horizon to 90 degrees at the zenith.

One of the two co-ordinates (the other being azimuth) that define a celestial object's position, used with an altazimuth mount.

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Astronomy and related astronomical terms
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