Primarily used in astronomy to discuss phenomena related to the stars.

Astronomy Term

Don't confuse 'sidereal' with 'solar', which relates to the sun.

Not Solar

Refers to precise calculations in astronomy based on star positions.

A sidereal year is different from the calendar year we commonly use.

Specific to time telling in astronomy, slightly shorter than a solar day.

Sidereal time is not used in daily life but is essential for astronomical studies.