Vi fant 3 definisjoner av ephemeris time på engelsk.
Noun |
||
| ephemeris time - (astronomy) a measure of time defined by Earth's orbital motion; terrestrial time is mean solar time corrected for the irregularities of the Earth's motions | ||
| terrestrial time, TT, terrestrial dynamical time, TDT | ||
| time unit, unit of time a unit for measuring time periods | ||
Substantiv |
||
| ephemeris time - A former standard astronomical time scale intended to overcome the drawbacks of irregularly fluctuating mean solar time, superseded in the 1970s. | ||
| ephemeris time - A modern relativistic-coordinate time scale. |