Dictionary term
Position Angle
Direct answer
Position Angle is the orientation of one sky point from another, conventionally measured from celestial north through east.
It gives a companion or feature’s direction around a reference point.
It gives a companion or feature’s direction around a reference point.
A scientific orientation to scale, light, or motion; the article supplies the precise definition.Quick reference
- Use when
- State the zero direction, positive sense, epoch, and coordinate frame.
- Do not use it for
- Image rotation or mirrored optics can reverse an uncalibrated visual estimate.
- Reference category
- Astronomy & Skywatching
- Related terms
- Local Meridian, Hour Angle, Angular Separation, Celestial Pole
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The story behind Position Angle
Micrometers and astrometric imaging made position angle a standard double-star measurement.
Position Angle in spiritual tradition
Orientation becomes shareable when its convention is explicit.
Position Angle: 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.
Position Angle in numerology
Position Angle 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 Position Angle matters
It makes binary-star, galaxy-axis, and moving-object orientations quantitatively comparable.
Position Angle at work: an example
A companion at position angle 90 degrees lies east of the primary under the usual convention.
Where interpretation stops
Position Angle 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.
- International Astronomical Union: Standards of Fundamental Astronomy - IAU-maintained standards and algorithms for astronomical reference systems and coordinate transformations.
- Source
- The Great Almanac Dictionary
- Category
- Astronomy & Skywatching
- Also appears in
- Astronomy & Skywatching
- Aliases
- None listed
- Last updated
- 2026-07-16
Measure direction around a sky target
Position Angle in a book is one thing; Position Angle 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 Astronomy & Skywatching
- Right Ascension Hour
- Star Hopping
- Zenith
- Astronomical Opposition
- Exit Pupil
- Irregular Galaxy
- Objective Lens
Common questions
What is Position Angle?
Position Angle is the orientation of one sky point from another, conventionally measured from celestial north through east.
How is Position Angle used in an almanac?
State the zero direction, positive sense, epoch, and coordinate frame.
What should I avoid when interpreting Position Angle?
Image rotation or mirrored optics can reverse an uncalibrated visual estimate.
