Dictionary term
Right Ascension Table
Direct answer
Right Ascension Table is a table listing right ascension, the eastward equatorial coordinate measured from the equinox.
Right Ascension Table is a celestial longitude table used in historical astronomy, timekeeping, or navigation.
Right Ascension Table is a celestial longitude table 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 Right Ascension Table by checking whether the table uses hours or degrees and which equinox and coordinate epoch it adopts.
- Do not use it for
- Hours of right ascension are angular measure, not elapsed civil hours.
- Reference category
- Historical Almanacs & Instruments
- Related terms
- Precession Table, Declination Table, Cross Staff, Backstaff
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The story behind Right Ascension Table
Right-ascension tables underpinned star catalogues, clock-star programs, telescope setting circles, and observatory timekeeping.
Right Ascension Table in spiritual tradition
Right Ascension Table rewards careful observation, explicit assumptions, and humility about the limits of every model or measurement.
Right Ascension Table: 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.
Right Ascension Table in numerology
Right Ascension Table 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 Right Ascension Table matters
Right Ascension Table matters because right ascension connects star positions with sidereal time and meridian passage.
Right Ascension Table at work: an example
A star with right ascension near the local sidereal time is close to the local meridian.
Where interpretation stops
Right Ascension Table 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 and Navigational Almanacs - Official descriptions of the Astronomical Almanac, Nautical Almanac, and their tabular data.
- U.S. Naval Observatory: Astronomical Applications Data Services - Authoritative services for positions, rise and set data, phases, seasons, eclipses, and astronomical dates.
- Source
- The Great Almanac Dictionary
- Category
- Historical Almanacs & Instruments
- Also appears in
- Historical Almanacs & Instruments
- Aliases
- None listed
- Last updated
- 2026-07-16
Explore Right Ascension Table
Right Ascension Table in a book is one thing; Right Ascension Table 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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More in Historical Almanacs & Instruments
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- Almanac Ephemeris
- Computus
- Filar Micrometer
- Local Hour Angle
- Micrometer Eyepiece
- Pendulum Clock
Common questions
What is Right Ascension Table?
Right Ascension Table is a table listing right ascension, the eastward equatorial coordinate measured from the equinox.
How is Right Ascension Table used in an almanac?
Use Right Ascension Table by checking whether the table uses hours or degrees and which equinox and coordinate epoch it adopts.
What should I avoid when interpreting Right Ascension Table?
Hours of right ascension are angular measure, not elapsed civil hours.
