EPHEMERIS TIME vs TERRESTRIAL TIME: NOUN
- A modern relativistic-coordinate time scale.
- A former standard astronomical time scale intended to overcome the drawbacks of irregularly fluctuating mean solar time, superseded in the 1970s.
- (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
- (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
EPHEMERIS TIME vs TERRESTRIAL TIME: RELATED WORDS
- Exponential distribution, Universal time, Sidereal year, Civil time, Absolute magnitude, Solar day, Apparent magnitude, Sidereal day, Absolute space, Sidereal time, Mean solar day, Terrestrial dynamical time, Terrestrial time, Tt, Tdt
- N/A
EPHEMERIS TIME vs TERRESTRIAL TIME: DESCRIBE WORDS
- Factor of proportionality, Rydberg constant, Leap second, Gravitational constant, Exponential distribution, Universal time, Sidereal year, Civil time, Absolute magnitude, Solar day, Apparent magnitude, Sidereal day, Absolute space, Sidereal time, Mean solar day
- N/A
EPHEMERIS TIME vs TERRESTRIAL TIME: SENTENCE EXAMPLES
- Over the years different tables of have been used for the calculation of Ephemeris Time (barycentric dynamical time TDB) minus Universal Time.
- Terrestrial Time, which is used for astronomical calculations.
- In precise work, the timescale, e.g., Terrestrial Time (TT) or Universal Time (UT), should be specified.
- Civilization at large, not just astronomers, needs a smoothly running time system like Terrestrial Time.