Convert astronomical unit to nautical mile (international)
Please provide values below to convert astronomical unit [AU, UA] to nautical mile (international) [NM], or Convert nautical mile (international) to astronomical unit.
How to Convert Astronomical Unit to Nautical Mile (International)
1 AU, UA = 80776388.0669546 NM
Example: convert 15 AU, UA to NM:
15 AU, UA = 15 × 80776388.0669546 NM = 1211645821.00432 NM
Astronomical Unit to Nautical Mile (International) Conversion Table
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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.
Nautical Mile (International)
The international nautical mile is a unit of length used in marine and air navigation, defined as exactly 1,852 meters.
History/Origin
Historically, a nautical mile was defined as one minute of arc of latitude. The international nautical mile was defined by the First International Extraordinary Hydrographic Conference in Monaco in 1929. The United States adopted it in 1954, and the United Kingdom in 1970.
Current Use
The nautical mile is used for maritime and aviation purposes worldwide.