Julian year

From Biocrawler, the free encyclopedia.

A Julian year is the length of an average year in the Julian calendar, 365.25 days.

Astronomers still use the Julian year as a fundamental unit for ephemeris work, since it provides a quick and simple conversion to Julian dates.

Note a Julian year is not the same as a Gregorian calendar year, a tropical year or a sidereal year.

See also

• Anomalistic year
• Sidereal year
• Tropical year

External link

• What is a "Year" (on Earth or Mars)? (http://pweb.jps.net/~tgangale/mars/other/allison2.htm)

fr:année julienne

it:Anno giuliano nn:Juliansk år

Wikipedia (http://en.wikipedia.org/wiki/Main_Page) Julian_year (http://en.wikipedia.org/wiki/Julian_year) version history (http://en.wikipedia.org/w/index.php?title=Julian_year&action=history) GNU Free Documentation Lizenz (http://en.wikipedia.org/wiki/Wikipedia:Text_of_the_GNU_Free_Documentation_License) CC-by-sa (http://creativecommons.org/licenses/by-sa/2.5/)

---