- Terrestrial Dynamical Time
- Astronomy: TDT
Универсальный русско-английский словарь. Академик.ру. 2011.
Terrestrial Dynamical Time
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Terrestrial Dynamical Time — Dieser Artikel wurde aufgrund von inhaltlichen Mängeln auf der Qualitätssicherungsseite des Portals Physik eingetragen. Dies geschieht, um die Qualität der Artikel aus dem Themengebiet Physik auf ein akzeptables Niveau zu bringen. Dabei werden… … Deutsch Wikipedia
terrestrial dynamical time — noun (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 • Syn: ↑terrestrial time, ↑TT, ↑TDT, ↑ephemeris time • Topics: ↑astronomy, ↑ … Useful english dictionary
Dynamical time scale — has two distinct meanings and usages, both related to astronomy: In one use, which occurs in stellar physics, the dynamical time scale is alternatively known as the freefall time scale, and is in general, the length of time over which changes in… … Wikipedia
dynamical time — specialized timescale used to describe the motion of objects in space. As a practical matter, time can be defined as that coordinate which can most simply be related to the evolution of closed systems. Proper time is the time measured … Universalium
Barycentric Dynamical Time — (TDB) was a time standard used to take account of time dilation when calculating orbits of planets, asteroids, comets and interplanetary spacecraft in the Solar system. It was based on a Dynamical time scale but was not well defined and not… … Wikipedia
Barycentric Dynamical Time — Dieser Artikel wurde aufgrund von inhaltlichen Mängeln auf der Qualitätssicherungsseite des Portals Physik eingetragen. Dies geschieht, um die Qualität der Artikel aus dem Themengebiet Physik auf ein akzeptables Niveau zu bringen. Dabei werden… … Deutsch Wikipedia
Terrestrial Time — (TT) is the modern astronomical standard for the passage of time on the surface of the Earth (for civil purposes, Coordinated Universal Time (UTC) is standard). Since time moves at different rates for observers in different locations (due to… … Wikipedia
Time standard — A time standard is any officially recognized specification for measuring time: either the rate at which time passes; or points in time; or both. For example, the standard for civil time specifies both time intervals and time of day. A time scale… … Wikipedia
terrestrial time — noun (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 • Syn: ↑TT, ↑terrestrial dynamical time, ↑TDT, ↑ephemeris time • Topics: ↑astronomy … Useful english dictionary
time unit — noun a unit for measuring time periods • Syn: ↑unit of time • Hypernyms: ↑measure, ↑quantity, ↑amount • Hyponyms: ↑day, ↑twenty four hours, ↑ … Useful english dictionary
Time from NPL — Map showing the location of the Anthorn VLF transmitter within Cumbria … Wikipedia
