apparent horizon


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Related to apparent horizon: visible horizon

apparent horizon

n.

apparent horizon

The visible line of demarcation between land/sea and sky.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.apparent horizon - the line at which the sky and Earth appear to meetapparent horizon - the line at which the sky and Earth appear to meet
linear perspective, perspective - the appearance of things relative to one another as determined by their distance from the viewer
line - a spatial location defined by a real or imaginary unidimensional extent
References in periodicals archive ?
For a first approximation of the Moon's altitude, the differences in these elevations allowed us to calculate that the photograph's apparent horizon, formed by the distant Clark Range roughly nine miles from Glacier Point, was raised about 5[degrees]above the ideal geometric horizon.
What was really amazing," says Suen, "is that you could see the apparent horizon pop out faster than the shock waves.
You might improve your chances by observing from extreme elevations, where you can lower your apparent horizon by at least a half degree.

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