Sidereal Definition

Sidereal Sentence Examples

• The year, which comprises 365.25 solar days, contains 366.25 sidereal days.

• In this remarkable work Kant, proceeding from the Newtonian conception of the solar system, extends his consideration to the entire sidereal system, points out how the whole may be mechanically regarded, and throws out the important speculation which has since received the title of the nebular hypothesis.

• Days are distinguished as solar, sidereal or lunar, according as the revolution is taken relatively to the sun, the stars or the moon.

• The tropical zodiac (not the sidereal zodiac of constellations) is used, in line with majority astrological opinion in the modern West.

• Hipparchus fixed the chief data of astronomy - the lengths of the tropical and sidereal years, of the various months, and of the synodic periods of the five planets; determined the obliquity of the ecliptic and of the moon's path, the place of the sun's apogee, the eccentricity of his orbit, and the moon's horizontal parallax; all with approximate accuracy.