Dictionary term
Altitude Correction
Direct answer
Altitude Correction is the adjustments applied to an instrument altitude so it represents the required celestial-center geometry.
Altitude Correction is a celestial-angle correction set used in historical astronomy, timekeeping, or navigation.
Altitude Correction is a celestial-angle correction set used in historical astronomy, timekeeping, or navigation.
An engraved functional orientation; the page explains the real instrument, method, or publication.Quick reference
- Use when
- Use Altitude Correction by applying only the corrections appropriate to the instrument, horizon, body, limb, altitude, and current almanac.
- Do not use it for
- Combining tabular corrections with separate duplicate corrections can count the same effect twice.
- Reference category
- Historical Almanacs & Instruments
- Related terms
- Observed Altitude, Computed Altitude, Dip Correction, Refraction Correction
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The story behind Altitude Correction
Published correction tables standardized reductions that had once required lengthy separate calculations.
Altitude Correction in spiritual tradition
Altitude Correction rewards careful observation, explicit assumptions, and humility about the limits of every model or measurement.
Altitude Correction: fact and faith, kept distinct
This is a factual history-of-science, instrument, timekeeping, or navigation reference. It may support wonder and disciplined attention without becoming a claim of fate, worship, or private revelation.
Altitude Correction in numerology
Altitude Correction 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 Altitude Correction matters
Altitude Correction matters because instrument height, atmosphere, body size, parallax, and instrument error separate a raw angle from a reducible one.
Altitude Correction at work: an example
A lower-limb Sun sight may receive index, dip, refraction, parallax, and semidiameter treatment.
Where interpretation stops
Altitude Correction 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:
- National Geospatial-Intelligence Agency: The American Practical Navigator - Official modern reference for navigation principles, celestial observations, sight reduction, and navigational tables.
- U.S. Naval Observatory: Astronomical and Navigational Almanacs - Official descriptions of the Astronomical Almanac, Nautical Almanac, and their tabular data.
- Source
- The Great Almanac Dictionary
- Category
- Historical Almanacs & Instruments
- Also appears in
- Historical Almanacs & Instruments
- Aliases
- None listed
- Last updated
- 2026-07-16
Explore Altitude Correction
Altitude Correction in a book is one thing; Altitude Correction 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.
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Common questions
What is Altitude Correction?
Altitude Correction is the adjustments applied to an instrument altitude so it represents the required celestial-center geometry.
How is Altitude Correction used in an almanac?
Use Altitude Correction by applying only the corrections appropriate to the instrument, horizon, body, limb, altitude, and current almanac.
What should I avoid when interpreting Altitude Correction?
Combining tabular corrections with separate duplicate corrections can count the same effect twice.
