How many tropical year in 1 anomalistic year? The answer is 1.0000477583091. We assume you are converting between tropical year and anomalistic year. You can view more details on each measurement unit: tropical year or anomalistic year The SI base unit for time is the second. 1 second is equal to 3.1688765172731E-8 tropical year, or 3.1687251843163E-8 anomalistic year. Note that rounding errors may occur, so always check the results. Use this page to learn how to convert between years and years. Type in your own numbers in the form to convert the units!
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1 tropical year to anomalistic year = 0.99995 anomalistic year
5 tropical year to anomalistic year = 4.99976 anomalistic year
10 tropical year to anomalistic year = 9.99952 anomalistic year
20 tropical year to anomalistic year = 19.99904 anomalistic year
30 tropical year to anomalistic year = 29.99857 anomalistic year
40 tropical year to anomalistic year = 39.99809 anomalistic year
50 tropical year to anomalistic year = 49.99761 anomalistic year
75 tropical year to anomalistic year = 74.99642 anomalistic year
100 tropical year to anomalistic year = 99.99522 anomalistic year
You can do the reverse unit conversion from anomalistic year to tropical year, or enter any two units below:
The mean tropical year is defined as the period of time for the mean ecliptic longitude of the Sun to increase by 360 degrees. Since the Sun's ecliptic longitude is measured with respect to the equinox, the tropical year comprises a complete cycle of the seasons; because of the biological and socio-economic importance of the seasons, the tropical year is the basis of most calendars.
The International Union of Pure and Applied Chemistry and the International Union of Geological Sciences have jointly recommended using defining the annus, with symbol a, as the length of the tropical year in the year 2000:
a = 31556925.445 seconds (approximately 365.24219265 ephemeris days)
We default to using the Gregorian year on this site, but you can select a specific type of year by entering the full name like "tropical year".
The anomalistic year is the time taken for the Earth to complete one revolution with respect to its apsides. The orbit of the Earth is elliptical; the extreme points, called apsides, are the perihelion, where the Earth is closest to the Sun (January 3 in 2011), and the aphelion, where the Earth is farthest from the Sun (July 4 in 2011). The anomalistic year is usually defined as the time between perihelion passages. Its average duration is 365.259636 days (365 d 6 h 13 min 52.6 s) (at the epoch J2011.0).
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