How to convert revolutions to arcseconds
To convert a measurement in revolutions to arcseconds, multiply the value by 1,296,000. The conversion factor comes from the relationship between both units and the radian.
For example, to convert 5 rev to arcseconds: 5 × 1,296,000 = 6,480,000 ″.
What is a revolution?
A revolution (also called a turn or full circle) is one complete rotation, equal to 360 degrees or 2π radians. The revolution is the most intuitive angular unit — one full spin. It is the natural way to count rotations in machinery, and forms the basis of rotational-speed units such as revolutions per minute (RPM).
Common uses of revolutions include: Engine and motor speed (RPM); Counting rotations of wheels, gears, and turbines; Vinyl record and hard-drive spin rates; Describing full turns in everyday language.
What is a arcsecond?
An arcsecond is a unit of angle equal to 1/60 of an arcminute, 1/3,600 of a degree, or 1/1,296,000 of a full turn. It is written with a double-prime symbol (″). The arcsecond continues the Babylonian sexagesimal subdivision one step further and became essential in astronomy, where stellar parallaxes are measured in fractions of an arcsecond (the parsec is defined from it).
Common uses of arcseconds include: Stellar parallax and astrometry; Telescope resolution and seeing conditions; High-precision surveying and geodesy; Satellite and spacecraft pointing accuracy.
Revolutions to arcseconds worked examples
Here are some common values converted:
1 rev = 1,296,000 ″ 5 rev = 6,480,000 ″ 10 rev = 12,960,000 ″ 50 rev = 64,800,000 ″ 100 rev = 129,600,000 ″
Frequently asked questions
How many arcseconds are in one revolution?
One revolution (rev) equals 1,296,000 arcseconds (″). Multiply any value in revolutions by 1,296,000 to convert to arcseconds.
How do I convert revolutions to arcseconds?
Multiply the value in revolutions by 1,296,000. For example, 5 rev × 1,296,000 = 6,480,000 ″.
How do I convert arcseconds to revolutions?
Multiply the value in arcseconds by 0.000000771605, or divide by 1,296,000. Use the swap button on the converter above to reverse the direction.
Is the revolution to arcsecond conversion exact?
Angle conversions are exact. Degrees, gradians and revolutions are defined as exact fractions of a full turn (2π radians).
What is the formula for revolutions to arcseconds?
The formula is: ″ = rev × 1,296,000. This comes from the definition of both units relative to the radian.