ephemeris time (English, noun)
expansion: ephemeris time (uncountable)
Senses:
topics: astronomy
natural-sciences
glosses: A former standard astronomical time scale intended to overcome the drawbacks of irregularly fluctuating mean solar time, superseded in the 1970s.
tags: uncountable
topics: astronomy
natural-sciences
glosses: A modern relativistic-coordinate time scale.
tags: uncountable
Forms: