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TT vs ephemeris time

ephemeris time vs TT

TT and ephemeris time both are nouns.

Word NounAdjectiveVerbAdverb
TT Yes No No No
ephemeris time Yes No No No
As nouns, TT and ephemeris time are synonyms defined as:
  • TT and 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
Other synonyms of TT include TDT, terrestrial dynamical time, terrestrial time.
TT (noun) ephemeris time (noun)
a country scattered over Micronesia with a constitutional government in free association with the United States; achieved independence in 1986 (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
a republic in the western central Pacific Ocean in association with the United States
(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
Difference between TT and ephemeris time

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