Astronomy Answers: From the Astronomical Dictionary

Astronomy Answers
From the Astronomical Dictionary

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The description of the word you requested from the astronomical dictionary is given below.


siderus = [Latin] star

Sidereal means it has something to do with the stars. A sidereal period of time (such as the sidereal month and the sidereal year) is a period of time after which a celestial body reaches the same position relative to the stars.