Engelsk navneord: ephemeris time | |||
1. | ephemeris time (om tid) (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 | ||
Termer med samme betydning (synonymer) | TDT, terrestrial dynamical time, terrestrial time, TT | ||
Mindre specifikke termer | time unit, unit of time | ||
Overordnet emneområde | astronomy, uranology | ||