angular radius

angular radius

[′aŋ·gyə·lər ′rād·ē·əs]
(mathematics)
For a circle drawn on a sphere, the smaller of the angular distances from one of the two poles of the circle to any point on the circle.
References in periodicals archive ?
where [theta] is the angular radius of the focal spot relative to the center of the lens.
where [S.sub.v] is the total flux, [T.sub.e] is the electron temperature, D is the distance to the object, [[theta].sub.R] is the angular radius in arcminutes, and
He estimated the angular radius of the brighter of Mizar's components to be 3 arcseconds and wrongly assumed that this represented the star's actual disk.