How many millidecade in 1 sidereal month? The answer is 7.4853868594622. We assume you are converting between millidecade and sidereal month. You can view more details on each measurement unit: millidecade or sidereal month The SI base unit for time is the second. 1 second is equal to 3.1709791983765E-6 millidecade, or 4.2362262070237E-7 sidereal month. Note that rounding errors may occur, so always check the results. Use this page to learn how to convert between millidecades and months. 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 millidecade to sidereal month = 0.13359 sidereal month
5 millidecade to sidereal month = 0.66797 sidereal month
10 millidecade to sidereal month = 1.33594 sidereal month
20 millidecade to sidereal month = 2.67187 sidereal month
30 millidecade to sidereal month = 4.00781 sidereal month
40 millidecade to sidereal month = 5.34375 sidereal month
50 millidecade to sidereal month = 6.67968 sidereal month
75 millidecade to sidereal month = 10.01952 sidereal month
100 millidecade to sidereal month = 13.35936 sidereal month
You can do the reverse unit conversion from sidereal month to millidecade, or enter any two units below:
The SI prefix "milli" represents a factor of 10-3, or in exponential notation, 1E-3.
So 1 millidecade = 10-3 decades.
The definition of a decade is as follows:
a period of 10 years
The sidereal month is defined as the Moon's orbital period in a non-rotating frame of reference (which on average is equal to its rotation period in the same frame). It is about 27.32166 days (27 days, 7 hours, 43 minutes, 11.6 seconds). The exact duration of the orbital period cannot be easily determined, because the 'non-rotating frame of reference' cannot be observed directly. However, it is approximately equal to the time it takes the Moon to pass twice a "fixed" star (different stars give different results because all have proper motions and are not really fixed in position).
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