How many millimillennium in 1 sidereal year? The answer is 1.0007023561644. We assume you are converting between millimillennium and sidereal year. You can view more details on each measurement unit: millimillennium or sidereal year The SI base unit for time is the second. 1 second is equal to 3.1709791983765E-8 millimillennium, or 3.1687536047488E-8 sidereal year. Note that rounding errors may occur, so always check the results. Use this page to learn how to convert between millimillennia and years. 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 millimillennium to sidereal year = 0.9993 sidereal year
5 millimillennium to sidereal year = 4.99649 sidereal year
10 millimillennium to sidereal year = 9.99298 sidereal year
20 millimillennium to sidereal year = 19.98596 sidereal year
30 millimillennium to sidereal year = 29.97894 sidereal year
40 millimillennium to sidereal year = 39.97193 sidereal year
50 millimillennium to sidereal year = 49.96491 sidereal year
75 millimillennium to sidereal year = 74.94736 sidereal year
100 millimillennium to sidereal year = 99.92981 sidereal year
You can do the reverse unit conversion from sidereal year to millimillennium, or enter any two units below:
The SI prefix "milli" represents a factor of 10-3, or in exponential notation, 1E-3.
So 1 millimillennium = 10-3 millennia.
The definition of a millennium is as follows:
A millennium is a period of time equal to one thousand years. There are two main viewpoints about naming millennia and there was a popular debate leading up to the celebrations of the year 2000 as to whether 2000 was the beginning of a new millennium. Historically, there has been debate around the turn of the millennium, centuries and decades before.
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.
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