Convert Earth's distance from sun to astronomical unit
Please provide values below to convert Earth's distance from sun [AU_dist] to astronomical unit [AU, UA], or Convert astronomical unit to Earth's distance from sun.
How to Convert Earth's Distance From Sun to Astronomical Unit
1 AU_dist = 1 AU, UA
Example: convert 15 AU_dist to AU, UA:
15 AU_dist = 15 × 1 AU, UA = 15 AU, UA
Earth's Distance From Sun to Astronomical Unit Conversion Table
| Earth's distance from sun | astronomical unit |
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Earth's Distance From Sun
The Earth's distance from the Sun varies throughout the year. The average distance is defined as one astronomical unit (AU), which is about 149.6 million kilometers.
History/Origin
The measurement of the Earth-Sun distance has a long history, with early estimates made by ancient Greek astronomers. Modern measurements are highly precise.
Current Use
The Earth-Sun distance is a fundamental unit in astronomy and is used to measure distances within the solar system.
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.