How many sidereal year in 1 century?
The answer is 99.998258757219.

We assume you are converting between **sidereal year** and **century**.

You can view more details on each measurement unit:

sidereal year or
century

The SI base unit for **time** is the second.

1 second is equal to 3.1687536047488E-8 sidereal year, or 3.1688087814029E-10 century.

Note that rounding errors may occur, so always check the results.

Use this page to learn how to convert between years and centuries.

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
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to get your age in days or measure the duration of an event.

1 sidereal year to century = 0.01 century

10 sidereal year to century = 0.1 century

20 sidereal year to century = 0.2 century

30 sidereal year to century = 0.30001 century

40 sidereal year to century = 0.40001 century

50 sidereal year to century = 0.50001 century

100 sidereal year to century = 1.00002 century

200 sidereal year to century = 2.00003 century

You can do the reverse unit conversion from century to sidereal year, or enter any two units below:

sidereal year to millennium

sidereal year to day

sidereal year to fortnight

sidereal year to shake

sidereal year to month

sidereal year to nanosecond

sidereal year to microsecond

sidereal year to millisecond

sidereal year to week

sidereal year to second

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.

A century is a period of 100 years, which can have either 24 or 25 leap years, depends on whether the year xx00 is a leap year or not.

We assume there are 25 leap year days in a typical century. A non-leap year of 365 days would have 86,400 * 365 = 31,536,000 seconds in it. Adding another 25 days adds 2,160,000 seconds, so there are a total of 3,155,760,000 seconds in a century that has 25 leap years.

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