What does TT mean in Astronomy?

This page is about the meanings of the acronym/abbreviation/shorthand TT in the Academic & Science field in general and in the Astronomy terminology in particular.

Terrestrial Time (replaced Ephemeris Time, ET)

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What does TT mean?

Trust Territories.

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"TT." Abbreviations.com. STANDS4 LLC, 2014. Web. 21 Dec. 2014. <http://www.abbreviations.com/term/600537>.

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