How many sidereal year in 1 second? The answer is 3.1687536047488E-8. We assume you are converting between sidereal year and second. You can view more details on each measurement unit: sidereal year or second The SI base unit for time is the second. 1 sidereal year is equal to 31558149.504 second. Note that rounding errors may occur, so always check the results. Use this page to learn how to convert between years and seconds. Type in your own numbers in the form to convert the units!
You may also want to find out how many days are between two dates on the calendar. Use the date calculatorto get your age in days or measure the duration of an event.
1 sidereal year to second = 31558149.504 second
2 sidereal year to second = 63116299.008 second
3 sidereal year to second = 94674448.512 second
4 sidereal year to second = 126232598.016 second
5 sidereal year to second = 157790747.52 second
6 sidereal year to second = 189348897.024 second
7 sidereal year to second = 220907046.528 second
8 sidereal year to second = 252465196.032 second
9 sidereal year to second = 284023345.536 second
10 sidereal year to second = 315581495.04 second
You can do the reverse unit conversion from second to sidereal year, or enter any two units below:
A sidereal year (from Latin sidus "asterism, star") is the time taken by the Earth to orbit the Sun once with respect to the fixed stars. Hence it is also the time taken for the Sun to return to the same position with respect to the fixed stars after apparently travelling once around the ecliptic. It equals 365.25636 SI days for the J2000.0 epoch.
The second (symbol s) is a unit for time, and one of seven SI base units. It is defined as the duration of 9,192,631,770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the caesium-133 atom at zero kelvins.
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