# parallactic angle

> the angle between the great circle through a celestial object and the zenith, and the hour circle of the object

**Wikidata**: [Q2051578](https://www.wikidata.org/wiki/Q2051578)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Parallactic_angle)  
**Source**: https://4ort.xyz/entity/parallactic-angle