Convert chain to astronomical unit
Please provide values below to convert chain [ch] to astronomical unit [AU, UA], or Convert astronomical unit to chain.
How to Convert Chain to Astronomical Unit
1 ch = 1.3447250222125e-10 AU, UA
Example: convert 15 ch to AU, UA:
15 ch = 15 × 1.3447250222125e-10 AU, UA = 2.01708753331875e-09 AU, UA
Chain to Astronomical Unit Conversion Table
| chain | astronomical unit |
|---|
Chain
A chain is a unit of length equal to 66 feet, or 22 yards.
History/Origin
The chain was developed by English surveyor Edmund Gunter in the early 17th century. It was designed to be a convenient length for surveying land.
Current Use
The chain is still used in some surveying applications and is the length of a cricket pitch.
Astronomical Unit
The astronomical unit is a unit of length, now defined as exactly 149,597,870,700 meters. It is approximately the average distance between the Earth and the Sun.
History/Origin
Historically, the astronomical unit was the mean Earth-Sun distance. In 2012, the International Astronomical Union (IAU) redefined it as a fixed constant.
Current Use
The astronomical unit is used primarily for measuring distances within the Solar System or around other stars.