Dictionary term
Greatest Elongation
Direct answer
Greatest Elongation is the maximum apparent angular separation of Mercury or Venus from the Sun during one apparition.
It marks an inner planet’s widest solar separation.
- 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
- Distinguish eastern evening elongation from western morning elongation.
- Do not use it for
- Best visibility can occur on a nearby date because horizon angle and season also matter.
- Reference category
- Astronomy & Skywatching
- Related terms
- Phase Angle, Solar Elongation, Astronomical Opposition, Inferior Conjunction
The story behind Greatest Elongation
Geometric models and ephemerides predicted inner-planet elongations for observers.
Greatest Elongation in spiritual tradition
The largest angle is not always the easiest moment.
The Great Almanac frames Greatest Elongation 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.
Greatest Elongation 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.
Greatest Elongation in numerology
Greatest Elongation 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 Greatest Elongation matters
It often identifies a favorable observing window in evening or morning twilight.
Example in a reading: Venus at greatest eastern elongation stands farthest east of the Sun in angle, not physical distance.
Interpretive caution: Best visibility can occur on a nearby date because horizon angle and season also matter.
How Greatest Elongation is used in a reading
Distinguish eastern evening elongation from western morning elongation.
Where interpretation stops
Greatest Elongation 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.
- NASA Science: Skywatching FAQ - NASA guidance for observing stars, planets, constellations, and changing sky events.
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 Greatest Elongation inside a wider reference cluster instead of leaving it as a standalone keyword.
