How many sidereal month in 1 lunar year? The answer is 12.970294395693. We assume you are converting between sidereal month and lunar year. You can view more details on each measurement unit: sidereal month or lunar year The SI base unit for time is the second. 1 second is equal to 4.2362262070237E-7 sidereal month, or 3.2660987312905E-8 lunar year. Note that rounding errors may occur, so always check the results. Use this page to learn how to convert between months 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 sidereal month to lunar year = 0.0771 lunar year
10 sidereal month to lunar year = 0.77099 lunar year
20 sidereal month to lunar year = 1.54199 lunar year
30 sidereal month to lunar year = 2.31298 lunar year
40 sidereal month to lunar year = 3.08397 lunar year
50 sidereal month to lunar year = 3.85496 lunar year
100 sidereal month to lunar year = 7.70993 lunar year
200 sidereal month to lunar year = 15.41985 lunar year
You can do the reverse unit conversion from lunar year to sidereal month, or enter any two units below:
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).
The lunar year comprises twelve full cycles of the phases of the Moon, as seen from Earth. It has a duration of approximately 354.37 days. Muslims use this for celebrating their Eids and for marking the start of the fasting month of Ramadan. A Muslim calendar year is based on the lunar cycle.
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