position angle

British  

noun

1. the direction in which one object lies relative to another on the celestial sphere, measured in degrees from north in an easterly direction

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Example Sentences

See Examples For:

position angle

The magnitudes are both fourth, and the distance less than a quarter of a second; position angle changing.

From Pleasures of the telescope An Illustrated Guide for Amateur Astronomers and a Popular Description of the Chief Wonders of the Heavens for General Readers by Serviss, Garrett Putman

Their slow motion in position angle, however, was not all that could be desired.

From Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 2 "Hearing" to "Helmond" by Various

Great care has been taken in determining the position, angle, and heights of the prominences in all cases.

From Autobiography of Sir George Biddell Airy by Airy, George Biddell

With similar bevel-gear and rods the tangent screw is connected to the hand-wheel, 79, by which the observer communicates the fourth or slowest motion in position angle.

From Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 2 "Hearing" to "Helmond" by Various

This ring is necessary in order to allow the rods to follow the micrometer heads when the position angle is changed.

From Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 2 "Hearing" to "Helmond" by Various