circle of position
Definition of circle of position
: a circle on the earth whose center is the point directly under a celestial body and whose radius is the zenith distance of the celestial body, the observer's location being somewhere on this circle — compare sumner line
Start your free trial today and get unlimited access to America's largest dictionary, with:
- More than 250,000 words that aren't in our free dictionary
- Expanded definitions, etymologies, and usage notes
- Advanced search features
- Ad free!
Seen and Heard
What made you want to look up circle of position? Please tell us where you read or heard it (including the quote, if possible).