How many sidereal month in 1 millis? The answer is 4.2362262070237E-10. We assume you are converting between sidereal month and millisecond. You can view more details on each measurement unit: sidereal month or millis The SI base unit for time is the second. 1 second is equal to 4.2362262070237E-7 sidereal month, or 1000 millis. Note that rounding errors may occur, so always check the results. Use this page to learn how to convert between months and milliseconds. 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 millis = 2360591600 millis
2 sidereal month to millis = 4721183200 millis
3 sidereal month to millis = 7081774800 millis
4 sidereal month to millis = 9442366400 millis
5 sidereal month to millis = 11802958000 millis
6 sidereal month to millis = 14163549600 millis
7 sidereal month to millis = 16524141200 millis
8 sidereal month to millis = 18884732800 millis
9 sidereal month to millis = 21245324400 millis
10 sidereal month to millis = 23605916000 millis
You can do the reverse unit conversion from millis 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 SI prefix "milli" represents a factor of 10-3, or in exponential notation, 1E-3.
So 1 millisecond = 10-3 arcseconds.
The definition of a second is as follows:
A second of arc or arcsecond is a unit of angular measurement which comprises one-sixtieth of an arcminute, or 1/3600 of a degree of arc or 1/1296000 (approximately 7.7×10-7) of a circle. It is the angular diameter of an object of 1 unit diameter at a distance of 360×60×60/(2pi) (approximately 206,265 units), such as (approximately) 1 cm at 2.1 km, or, directly from the definition, 1 astronomical unit at 1 parsec.
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