Source: wikibot/parallactic-angle
= Parallactic angle
{wiki=Parallactic_angle}
The parallactic angle is an important concept in astronomy and astrophysics related to the observation of celestial objects. It is defined as the angle between two lines of sight: one pointing towards an observer from a celestial object and the other pointing from the observer to the point in the sky directly above them, often referred to as the zenith or the meridian.