How many synodic months in 1 sidereal year? The answer is 12.368746618188. We assume you are converting between synodic month and sidereal year. You can view more details on each measurement unit: synodic months or sidereal year The SI base unit for time is the second. 1 second is equal to 3.9193510432607E-7 synodic months, 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 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 synodic months to sidereal year = 0.08085 sidereal year
10 synodic months to sidereal year = 0.80849 sidereal year
20 synodic months to sidereal year = 1.61698 sidereal year
30 synodic months to sidereal year = 2.42547 sidereal year
40 synodic months to sidereal year = 3.23396 sidereal year
50 synodic months to sidereal year = 4.04245 sidereal year
100 synodic months to sidereal year = 8.08489 sidereal year
200 synodic months to sidereal year = 16.16979 sidereal year
You can do the reverse unit conversion from sidereal year to synodic months, or enter any two units below:
A synodic month is the most familiar lunar cycle, defined as the time interval between two consecutive occurrences of a particular phase (such as new moon or full moon) as seen by an observer on Earth. The mean length of the synodic month is 29.53059 days (29 days, 12 hours, 44 minutes, 2.8 seconds). Due to the eccentricity of the lunar orbit around Earth (and to a lesser degree, the Earth’s elliptical orbit around the Sun), the length of a synodic month can vary by up to seven hours.
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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