sidereal year

Definition from Wiktionary, a free dictionary

Contents 1 English 1.1 Noun 1.1.1 Translations 1.1.2 See also 1.1.3 External links

[edit] English

[edit] Noun

sidereal year (plural sidereal years)

1. The orbital period of the Earth; a measure of the time it takes for the Sun to return to the same position with respect to the stars of the celestial sphere. A sidereal year is about 20.4 minutes longer than the tropical year due to precession of the equinoxes.

[edit] Translations

[edit] See also

• mean solar day
• tropical year

[edit] External links

• Sidereal year on Wikipedia.Wikipedia