Arago point
Arago point
[′a·rə‚gō ‚pȯint] (optics)
A neutral point located about 20° directly above the antisolar point in relatively clear air and at higher elevations in turbid air.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive
In France [astronomer Francois]
Arago pointed out that the accomplishments in the land of the free were being surpassed by those in the 'land of the serfs.' John Quincy Adams impassionately echoed the phrase in this country, urging the establishment of a national observatory."
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