Angular distance and Dec

Angular distance noun - The angular separation between two objects as perceived by an observer.

Dec and angular distance are semantically related. In some cases you can replace term "Dec" with "Angular distance", this terms are similar.

Dec noun - (astronomy) the angular distance of a celestial body north or to the south of the celestial equator; expressed in degrees; used with right ascension to specify positions on the celestial sphere.

Angular distance and dec are semantically related. You can use "Angular distance" instead a noun "Dec".