How many milliarcsecond in 1 second? The answer is 1000. We assume you are converting between milliarcsecond and arcsecond. You can view more details on each measurement unit: milliarcsecond or second The SI derived unit for angle is the radian. 1 radian is equal to 206264806.2471 milliarcsecond, or 206264.8062471 second. Note that rounding errors may occur, so always check the results. Use this page to learn how to convert between milliarcseconds and arcseconds. Type in your own numbers in the form to convert the units!
1 milliarcsecond to second = 0.001 second
10 milliarcsecond to second = 0.01 second
50 milliarcsecond to second = 0.05 second
100 milliarcsecond to second = 0.1 second
200 milliarcsecond to second = 0.2 second
500 milliarcsecond to second = 0.5 second
1000 milliarcsecond to second = 1 second
You can do the reverse unit conversion from second to milliarcsecond, or enter any two units below:
The SI prefix "milli" represents a factor of 10-3, or in exponential notation, 1E-3.
So 1 milliarcsecond = 10-3 arcsecond.
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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