Astronomical Unit
| Use attributes for filter ! | |
| Unit of | Length |
|---|---|
| Metric (SI) units | 149597870700 m |
| Unit system | Astronomical system of units |
| SI | |
| Symbol | au, ua, or AU |
| Imperial & US units | 9. 2956×107 mi |
| Astronomical units | 4. 8481×10−6 pc; 1. 5813×10−5 ly |
| Date of Reg. | |
| Date of Upd. | |
| ID | 958239 |
About Astronomical Unit
The astronomical unit is a unit of length, roughly the distance from Earth to the Sun. However, that distance varies as Earth orbits the Sun, from a maximum to a minimum and back again once a year.