How many hours in 1 sidereal month? The answer is 655.71988888889. We assume you are converting between hour and sidereal month. You can view more details on each measurement unit: hours or sidereal month The SI base unit for time is the second. 1 second is equal to 0.00027777777777778 hours, 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 hours 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 hours to sidereal month = 0.00153 sidereal month
10 hours to sidereal month = 0.01525 sidereal month
50 hours to sidereal month = 0.07625 sidereal month
100 hours to sidereal month = 0.1525 sidereal month
200 hours to sidereal month = 0.30501 sidereal month
500 hours to sidereal month = 0.76252 sidereal month
1000 hours to sidereal month = 1.52504 sidereal month
You can do the reverse unit conversion from sidereal month to hours, or enter any two units below:
The hour was originally defined in Egypt as 1/24 of a day, based on their duo-decimal numbering system (which counted finger joints on each hand).
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!