sidereal time

Definitions of sidereal time
1

n measured by the diurnal motion of stars

Types:
show 4 types...
hide 4 types...
day, sidereal day
the time for one complete rotation of the earth relative to a particular star, about 4 minutes shorter than a mean solar day
sidereal year
the time for the earth to make one complete revolution around the sun, relative to the fixed stars
sidereal hour
1/24 of a sidereal day
sidereal month
period between successive conjunctions with a star, 27.322 days
Type of:
cosmic time
the time covered by the physical formation and development of the universe

Sign up, it's free!

Whether you're a student, an educator, or a lifelong learner, Vocabulary.com can put you on the path to systematic vocabulary improvement.