How many degree in 1 arcsecond?
The answer is 0.000277777777778.

We assume you are converting between **degree** and **arcsecond**.

You can view more details on each measurement unit:

degree or
arcsecond

The SI derived unit for **angle** is the radian.

1 radian is equal to 57.2957795131 degree, or 206264.806247 arcsecond.

Note that rounding errors may occur, so always check the results.

Use this page to learn how to convert between degrees and arcseconds.

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A degree (or in full degree of arc), usually symbolized by the symbol °, is a measurement of plane angles, or of a location along a great circle of a sphere (such as the Earth or the celestial sphere), representing 1/360 of a full rotation.

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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