angular distance - meaning and definition. What is angular distance
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What (who) is angular distance - definition

MEASURE FOR HOW WIDE AN ANGLE IS
Angular Distance; Angular separation; Apparent separation; Apparent distance; Arc distance
  • Angular separation <math>\theta</math> between points A and B as seen from O
  • Planar approximation of angular distance on sky

angular distance         
Apparent distance, distance as measured by an angle.
Angular distance         
Angular distance \theta (also known as angular separation, apparent distance, or apparent separation) is the angle between the two sightlines, or between two point objects as viewed from an observer.
Angular diameter distance         
  • cosmology]], with on the vertical scale megaparsecs.
ASTRONOMICAL CONCEPT
Angular size redshift relation; Angular diameter turnover; Angular diameter turnaround
In astronomy, angular diameter distance is a distance defined in terms of an object's physical size, x, and its angular size, \theta, as viewed from earth:

Wikipedia

Angular distance

Angular distance θ {\displaystyle \theta } (also known as angular separation, apparent distance, or apparent separation) is the angle between the two sightlines, or between two point objects as viewed from an observer.

Angular distance appears in mathematics (in particular geometry and trigonometry) and all natural sciences (e.g. astronomy and geophysics). In the classical mechanics of rotating objects, it appears alongside angular velocity, angular acceleration, angular momentum, moment of inertia and torque.