Arcsecond
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1/3600 of a degree
About Arcsecond (″)
One sixtieth of an arcminute (1/3600 of a degree), the arcsecond provides the precision needed in astrometry for measuring stellar positions and parallax. The Hubble Space Telescope achieves resolution of about 0.05 arcseconds, and GPS coordinates at the arcsecond level pinpoint locations to within about 31 meters.
- Category
- Angle
- Symbol
- ″
- Also known as
- arcseconds second of arc
CONVERT TO
Frequently Asked Questions
What is a Arcsecond (″)?
1/3600 of a degree
How many Radian (rad) are in one Arcsecond (″)?
One Arcsecond (″) equals 0.0000048481 Radian (rad).
How many Degree (°) are in one Arcsecond (″)?
One Arcsecond (″) equals 0.0002777778 Degree (°).
How many Gradian (gon) are in one Arcsecond (″)?
One Arcsecond (″) equals 0.000308642 Gradian (gon).
How do I convert Arcsecond to Radian?
To convert Arcsecond to Radian, multiply the value by 0.0000048481 (1 ″ = 0.0000048481 rad).