ephemeris time
English Dictionary
->
Letter E
-> ephemeris time
Search Dictionary:
ephemeris time Definition
(n) (
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 Synonyms
ephemeris time
TDT
terrestrial dynamical time
terrestrial time
TT
© Art Branch Inc.