Cách sử dụng
The word 'sidereal' means relating to the stars or measured by the stars. It is typically used in astronomy, when referring to the position, motion, or time of stars or other celestial bodies. For example, sidereal time represents the time it takes for the Earth to rotate once with respect to the stars, rather than with respect to the sun. The word can also be used in astrology, where it refers to the influence of the stars and planets on human behavior and events.