Dictionary term
Aphelion
Direct answer
Aphelion is the point where a heliocentric orbiting body is farthest from the Sun.
It is the Sun-specific form of apoapsis.
It is the Sun-specific form of apoapsis.
A scientific orientation to scale, light, or motion; the article supplies the precise definition.Quick reference
- Use when
- Read it with perihelion and orbital eccentricity rather than as a climate forecast.
- Do not use it for
- Aphelion does not make every location colder or reduce daylight uniformly.
- Reference category
- Astronomy & Skywatching
- Related terms
- Apoapsis, Perihelion, Perigee, Apogee
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The story behind Aphelion
Keplerian astronomy linked aphelion distance with slower orbital motion.
Aphelion in spiritual tradition
Orbital facts deserve separation from local weather intuition.
Aphelion: 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.
Aphelion in numerology
Aphelion 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 Aphelion matters
It marks the maximum solar distance in a bound eccentric orbit.
Where interpretation stops
Aphelion 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.
- NASA Science: Solar System Exploration - NASA overview of planets, moons, small bodies, rings, and the structure of the Solar System.
- Source
- The Great Almanac Dictionary
- Category
- Astronomy & Skywatching
- Also appears in
- Astronomy & Skywatching
- Aliases
- None listed
- Last updated
- 2026-07-16
Compare Earth at aphelion and perihelion
Aphelion in a book is one thing; Aphelion 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
- Averted Vision
- Eccentric Anomaly
- Greatest Elongation
- Lunar Libration
- Parabolic Orbit
- Radio Telescope
- Solar Corona
- Telescope Focal Length
Common questions
What is Aphelion?
Aphelion is the point where a heliocentric orbiting body is farthest from the Sun.
How is Aphelion used in an almanac?
Read it with perihelion and orbital eccentricity rather than as a climate forecast.
What should I avoid when interpreting Aphelion?
Aphelion does not make every location colder or reduce daylight uniformly.
