BabelNet

bn:00031125n

Noun Concept

Categories: Earth, All articles containing potentially dated statements, Articles with short description, Time scales, Time in astronomy

terrestrial time TT terrestrial dynamical time TDT 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 WordNet 3.0

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(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 WordNet 3.0 & Open English WordNet

The term ephemeris time can in principle refer to time in association with any ephemeris. Wikipedia

Terrestrial Time is a modern astronomical time standard defined by the International Astronomical Union, primarily for time-measurements of astronomical observations made from the surface of Earth. Wikipedia

An astronomical time standard Wikipedia Disambiguation

Time standard Wikidata

Time standard for astronomical observations from the Earth Wikidata

A former standard astronomical time scale intended to overcome the drawbacks of irregularly fluctuating mean solar time, superseded in the 1970s. Wiktionary

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Geocentric Coordinate Time

WordNet 3.0 & Open English WordNet

terrestrial time, TT, terrestrial dynamical time, TDT, ephemeris time