Dictionary term
Orbital Eccentricity
Direct answer
Orbital Eccentricity is a dimensionless measure of how much a conic orbit departs from a circle.
It quantifies orbital shape from circular to open trajectories.
- Source
- The Great Almanac Dictionary
- Category
- Astronomy & Skywatching
- Also appears in
- Astronomy & Skywatching
- Aliases
- None listed
- Last updated
- 2026-07-16
Quick reference
- Use when
- Interpret eccentricity with the conic type and current element epoch.
- Do not use it for
- Eccentricity alone does not give orbit size, orientation, or current position.
- Reference category
- Astronomy & Skywatching
- Related terms
- Orbital Elements, Semimajor Axis, Orbital Inclination, Longitude of Ascending Node
The story behind Orbital Eccentricity
Ellipse geometry supplied eccentricity before Newton explained orbital gravitation.
Orbital Eccentricity in spiritual tradition
Shape and scale answer different questions.
The Great Almanac frames Orbital Eccentricity with educational restraint. Mystical or symbolic language may be meaningful, but it should not be exaggerated into certainty, panic, or permission to ignore ordinary responsibility.
Orbital Eccentricity in the Bible
This is a factual astronomy reference. It can support wonder at the created order without becoming a claim of fate, worship, or private revelation.
Orbital Eccentricity in numerology
Orbital Eccentricity 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 Orbital Eccentricity matters
It distinguishes nearly circular planetary orbits from elongated cometary paths.
Example in a reading: An ellipse has eccentricity between zero and one; a parabola has one.
Interpretive caution: Eccentricity alone does not give orbit size, orientation, or current position.
How Orbital Eccentricity is used in a reading
Interpret eccentricity with the conic type and current element epoch.
Where interpretation stops
Orbital Eccentricity 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:
- NASA Science: Orbits and Kepler’s Laws - NASA explanation of orbital ellipses, orbital periods, and Kepler’s laws of planetary motion.
- U.S. Naval Observatory: Astronomical Almanac Glossary - Definitions for astronomical coordinates, time, reference systems, and observable phenomena.
The page starts with a direct definition, then separates use, example, caution, spiritual meaning, and historical context. For astrology, occult, demonology, curse, and spiritual warfare terms, the editorial rule is to explain the term without making fear-based, fatalistic, medical, legal, financial, or ritual-instruction claims.
Continue learning
Continue from the definition into current sky positions, space weather, and the live collective celestial view.
Open Worldwide WatchRelated terms
These related entries help place Orbital Eccentricity inside a wider reference cluster instead of leaving it as a standalone keyword.

