Statements (20)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
astronomer
|
| gptkbp:affects |
astrological ages
orientation of Earth's rotational axis star positions over millennia |
| gptkbp:alsoKnownAs |
precession of the equinoxes
|
| gptkbp:causedBy |
gravitational forces of the Sun and Moon
|
| gptkbp:discoveredBy |
gptkb:Hipparchus
|
| gptkbp:discoveredIn |
2nd century BCE
|
| gptkbp:duration |
approximately 26,000 years
|
| gptkbp:firstMeasuredBy |
gptkb:Hipparchus
|
| https://www.w3.org/2000/01/rdf-schema#label |
Earth's axial precession
|
| gptkbp:influenced |
calendar systems
navigation by stars |
| gptkbp:partOf |
Earth's motion
|
| gptkbp:rating |
about 50.3 arcseconds per year
|
| gptkbp:result |
change in position of celestial poles
change in position of equinoxes |
| gptkbp:type |
precession
|
| gptkbp:bfsParent |
gptkb:Vega_(in_about_12,000_years)
|
| gptkbp:bfsLayer |
7
|