Dictionary term
Small Circle
Direct answer
Small Circle: A Small Circle is formed when a plane cuts a sphere without passing through its center.
It is a spherical circle smaller than a great circle.
It is a spherical circle smaller than a great circle.
A scientific orientation to scale, light, or motion; the article supplies the precise definition.Quick reference
- Use when
- Use it when distinguishing daily star tracks from great-circle coordinate lines.
- Do not use it for
- Small-circle distance is not generally the shortest path between two sky positions.
- Reference category
- Astronomy & Skywatching
- Related terms
- Prime Vertical, Great Circle, Celestial Horizon, Reference Epoch
The Chapter · Mystery School
Learn to read the sky for yourself
A mystery school of astrology with a worldwide chapter: letters on the chart and the soul, readings under one sky, and a rule of honesty about what the stars can and cannot say.
- The founding letter, with what the school studies and how it meets
- First word each season, when the doors open
- A seat at the gatherings, wherever in the world you are
Reading about Small Circle? The chapter is where readers like you meet.
Founding circle · forming now
The list costs nothing. Word of the school and its gatherings, nothing else. Unsubscribe at any time.
The story behind Small Circle
Spherical astronomy formalized small circles alongside great circles.
Small Circle: fact and faith, kept distinct
This is a factual astronomy reference. It can support wonder at the created order without becoming a claim of fate, worship, or private revelation.
Small Circle in numerology
Small Circle is not a numerology claim. Any numbers attached to it should retain their ordinary scientific, calendrical, navigational, or historical meaning unless a separate symbolic interpretation is clearly labeled.
Why Small Circle matters
It describes paths such as constant-declination parallels away from the celestial equator.
Small Circle at work: an example
A star’s ideal diurnal path at fixed declination traces a small circle around the pole.
Where interpretation stops
Small Circle is presented as sourced astronomy, calendrical, Earth-science, cultural, or instrument-history reference. Definitions should distinguish measured phenomena from civil convention and historical interpretation, preserve location and time dependencies, and avoid turning factual sky data into a deterministic personal claim.
Sources and editorial method
Research references used for this entry include:
- U.S. Naval Observatory: Astronomical Almanac Glossary - Definitions for astronomical coordinates, time, reference systems, and observable phenomena.
- International Astronomical Union: Standards of Fundamental Astronomy - IAU-maintained standards and algorithms for astronomical reference systems and coordinate transformations.
- Source
- The Great Almanac Dictionary
- Category
- Astronomy & Skywatching
- Also appears in
- Astronomy & Skywatching
- Aliases
- None listed
- Last updated
- 2026-07-16
Compare great and small sky circles
Small Circle in a book is one thing; Small Circle in your own birth chart is your life. The Oracle casts your real chart and tells you what it means for your love, your work, and your year ahead, in conversation, free.
Speak with the OracleRelated terms
More in Astronomy & Skywatching
- Synodic Period
- Angular Separation
- Atmospheric Transparency
- Descending Orbital Node
- Gravitational Lensing
- Local Meridian
- Orbital Perturbation
- Quasar
Common questions
What is Small Circle?
A Small Circle is formed when a plane cuts a sphere without passing through its center.
How is Small Circle used in an almanac?
Use it when distinguishing daily star tracks from great-circle coordinate lines.
What should I avoid when interpreting Small Circle?
Small-circle distance is not generally the shortest path between two sky positions.
