How many Julian month in 1 sidereal month? The answer is 0.89763160696631. We assume you are converting between Julian month and sidereal month. You can view more details on each measurement unit: Julian month or sidereal month The SI base unit for time is the second. 1 second is equal to 3.8025705376835E-7 Julian month, 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 months 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 Julian month to sidereal month = 1.11404 sidereal month
5 Julian month to sidereal month = 5.57021 sidereal month
10 Julian month to sidereal month = 11.14043 sidereal month
15 Julian month to sidereal month = 16.71064 sidereal month
20 Julian month to sidereal month = 22.28086 sidereal month
25 Julian month to sidereal month = 27.85107 sidereal month
30 Julian month to sidereal month = 33.42128 sidereal month
40 Julian month to sidereal month = 44.56171 sidereal month
50 Julian month to sidereal month = 55.70214 sidereal month
You can do the reverse unit conversion from sidereal month to Julian month, or enter any two units below:
There are 12 Julian months in a Julian year, and the Julian year is 365.25 days long, so the Julian month is 30.4375 days in length.
We default to using the Gregorian month on this site, but you can select any type of month by entering the full name like "Julian month".
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, 70 kg, 150 lbs, US fluid ounce, 6'3", 10 stone 4, cubic cm, metres squared, grams, moles, feet per second, and many more!