Astronomy:Gaussian year
From HandWiki
A Gaussian year is defined as 365.2568983 days.[1] It 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,[2] 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 Kepler's third law as
- [math]\displaystyle{ \mbox{1 Gaussian year}= \frac {2\pi} {k} \, }[/math]
where
- k is the Gaussian gravitational constant.[3]
See also
References
- ↑ Standish, E. M. (2004-06-01). "The Astronomical Unit now". Proceedings of the International Astronomical Union 2004 (IAUC196): 163–179. doi:10.1017/S1743921305001365. ISSN 1743-9221. https://www.cambridge.org/core/journals/proceedings-of-the-international-astronomical-union/article/the-astronomical-unit-now/2BE5DC4A39F90B58CAEA11EF70B24354.
- ↑ Chamberlin, Alan. "Astrodynamic Constants". http://ssd.jpl.nasa.gov/?constants.
- ↑ Herrick, S.; Jr, R. M. L. Baker; Hilton, C. G. (1958-01-01). Hecht, F.. ed (in en). VIIIth International Astronautical Congress Barcelona 1957 / VIII. Internationaler Astronautischer Kongress / VIIIe Congrès International D'Astronautique. Springer Berlin Heidelberg. pp. 197–235. doi:10.1007/978-3-662-39990-3_17. ISBN 9783662390207.
 |
