How many sidereal month in 1 week?
The answer is 0.25620696100079.
We assume you are converting between sidereal month and week.
You can view more details on each measurement unit:
sidereal month or week
The SI base unit for time is the second.
1 second is equal to 4.2362262070237E-7 sidereal month, or 1.6534391534392E-6 week.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between months and weeks.
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 sidereal month to week = 3.90309 week
5 sidereal month to week = 19.51547 week
10 sidereal month to week = 39.03095 week
15 sidereal month to week = 58.54642 week
20 sidereal month to week = 78.06189 week
25 sidereal month to week = 97.57736 week
30 sidereal month to week = 117.09284 week
40 sidereal month to week = 156.12378 week
50 sidereal month to week = 195.15473 week
You can do the reverse unit conversion from week to sidereal month, or enter any two units below:
sidereal month to fortnight
sidereal month to nanosecond
sidereal month to quarter
sidereal month to day
sidereal month to decade
sidereal month to millennium
sidereal month to minute
sidereal month to second
sidereal month to millisecond
sidereal month to hour
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).
A week is a unit of time longer than a day and shorter than a month. In most modern calendars, including the Gregorian calendar, the week is a period of seven days, making it the longest conventionally used time unit that contains a fixed number of days. Although having no direct astronomical basis, it is widely used as a unit of time.
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