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barycentric dynamical time

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barycentric dynamical time

(TDB) See dynamical time.
Collins Dictionary of Astronomy © Market House Books Ltd, 2006
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References in periodicals archive
Also created in 1984 was Barycentric Dynamical Time (TDB), which is referred to the solar system's center of mass; it accounts for tiny effects on the flow of time in Einstein's theory of general relativity.
Time and the amateur astronomer
To mention only a few: relativistic effects, Barycentric Dynamical Time, measurement of Atomic Time, clock synchronization by very-long-baseline interferometry, planetary terms in nutation (used only for arc-millisecond accuracy!), the FK5 system, laser ranging, and rotation parameters for satellites of the planets.
Explanatory Supplement to the Astronomical Almanac
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