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A Gaussian year is defined as 365.2568983 days. The stated value was adopted by Carl Friedrich Gauss as the length of the sidereal year in his studies of the dynamics of the solar system. A slightly different value is now accepted as the length of the sidereal year, and the value accepted by Gauss is given a special name. A particle of negligible mass, that orbits a body of 1 solar mass in this period, has a mean axis for its orbit of 1 astronomical unit by definition. The value is derived from the Kepler's third law as 1 Gaussian year = 2π / k where k is the Gaussian gravitational constant. See also Astronomical unit Categories: Astronomy | Units of time | Astronomy stubs

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	Year - Wikipedia, the free encyclopedia (1920 words) A seasonal year is the time between successive recurrences of a seasonal event such as the flooding of a river, the migration of a species of bird, the flowering of a species of plant, the first frost, or the first scheduled game of a certain sport. A tropical year is the time for the Earth to complete one revolution with respect to the framework provided by the intersection of the ecliptic (the plane of the orbit of the Earth) and the plane of the equator (the plane perpendicular to the rotation axis of the Earth). The Gaussian year is the sidereal year for a planet of negligible mass (relative to the Sun) and unperturbed by other planets that is governed by the Gaussian gravitational constant. Article about "Year" in the English Wikipedia on 24-Apr-2004 (944 words) A seasonal year is the time between successive recurrences of a seasonal event such as the flooding of a river, the migration of a species of bird, or the flowering of a species of plant. The eclipse year or ecliptic year is the time for the Sun (as seen from the Earth) to complete one revolution with respect to a node of the Moon's orbit (the points where the Moon's orbit intersects the ecliptic). The Gaussian year is the siderial year for an ideal planet governed by the Gaussian gravitational constant.
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