astronomical reference parameter
C27845
concept
An astronomical reference parameter is a standardized value or constant used to define, calibrate, or relate measurements in astronomy, such as positions, motions, or physical properties of celestial objects, within a chosen reference frame or system.
Observed surface forms (6)
| Surface form | Occurrences |
|---|---|
| astronomical time standard | 2 |
| astronomical calculation method | 1 |
| astronomical constant set | 1 |
| astronomical framework | 1 |
| astronomical reference system center | 1 |
| galactic dynamics parameter | 1 |
Instances (7)
| Instance | Via concept surface |
|---|---|
| Earth Orientation Parameters | — |
| IERS ICRS Centre | astronomical reference system center |
| Oort constants | astronomical constant set |
| Ephemeris Time | astronomical time standard |
| Barycentric Dynamical Time | astronomical time standard |
| Besselian elements | astronomical calculation method |
| Tellian Atlas system | astronomical framework |