How many days in 1 sidereal month?
The answer is 27.321662037037.
We assume you are converting between day and sidereal month.
You can view more details on each measurement unit:
days or sidereal month
The SI base unit for time is the second.
1 second is equal to 1.1574074074074E-5 days, 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 days 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 calculator to get your age in days or measure the duration of an event.
1 days to sidereal month = 0.0366 sidereal month
10 days to sidereal month = 0.36601 sidereal month
20 days to sidereal month = 0.73202 sidereal month
30 days to sidereal month = 1.09803 sidereal month
40 days to sidereal month = 1.46404 sidereal month
50 days to sidereal month = 1.83005 sidereal month
100 days to sidereal month = 3.6601 sidereal month
200 days to sidereal month = 7.3202 sidereal month
You can do the reverse unit conversion from sidereal month to days, or enter any two units below:
A continuous period of 24 hours which, unless the context otherwise requires, runs from midnight to midnight.
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).
ConvertUnits.com provides an online conversion calculator for all types of measurement units. You can find metric conversion tables for SI units, as well as English units, currency, and other data. Type in unit symbols, abbreviations, or full names for units of length, area, mass, pressure, and other types. Examples include mm, inch, 100 kg, US fluid ounce, 6'3", 10 stone 4, cubic cm, metres squared, grams, moles, feet per second, and many more!