The astronomical unit (symbol au, or ua) 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 (aphelion) to a minimum (peri ..more definition+
The light-second is a unit of length useful in astronomy, telecommunications and relativistic physics. It is defined as the distance that light travels in free space in one second, and is equal to exactly 2997 ..more definition+
In relation to the base unit of [length] => (meters), 1 Astronomical Unit (au) is equal to 149597870700 meters, while 1 Light Seconds (ls) = 299800000 meters.| 1 Astronomical Unit | to common length units |
|---|---|
| 1 au | = 149597870700 meters (m) |
| 1 au | = 149597870.7 kilometers (km) |
| 1 au | = 14959787070000 centimeters (cm) |
| 1 au | = 490806662401.57 feet (ft) |
| 1 au | = 5889679948818.9 inches (in) |
| 1 au | = 163602220800.52 yards (yd) |
| 1 au | = 92955807.273026 miles (mi) |
| 1 au | = 1.5812056939013E-5 light years (ly) |
| 1 au | = 5.6540934631929E+14 pixels (PX) |
| 1 au | = 9.34986691875E+45 planck length (pl) |
| Astronomical Unit | to Light Seconds (table conversion) |
|---|---|
| 1 au | = 498.99223048699 ls |
| 2 au | = 997.98446097398 ls |
| 3 au | = 1496.976691461 ls |
| 4 au | = 1995.968921948 ls |
| 5 au | = 2494.961152435 ls |
| 6 au | = 2993.9533829219 ls |
| 7 au | = 3492.9456134089 ls |
| 8 au | = 3991.9378438959 ls |
| 9 au | = 4490.9300743829 ls |
| 10 au | = 4989.9223048699 ls |
| 20 au | = 9979.8446097398 ls |
| 30 au | = 14969.76691461 ls |
| 40 au | = 19959.68921948 ls |
| 50 au | = 24949.61152435 ls |
| 60 au | = 29939.533829219 ls |
| 70 au | = 34929.456134089 ls |
| 80 au | = 39919.378438959 ls |
| 90 au | = 44909.300743829 ls |
| 100 au | = 49899.223048699 ls |
| 200 au | = 99798.446097398 ls |
| 300 au | = 149697.6691461 ls |
| 400 au | = 199596.8921948 ls |
| 500 au | = 249496.1152435 ls |
| 600 au | = 299395.33829219 ls |
| 700 au | = 349294.56134089 ls |
| 800 au | = 399193.78438959 ls |
| 900 au | = 449093.00743829 ls |
| 1000 au | = 498992.23048699 ls |
| 2000 au | = 997984.46097398 ls |
| 4000 au | = 1995968.921948 ls |
| 5000 au | = 2494961.152435 ls |
| 7500 au | = 3742441.7286524 ls |
| 10000 au | = 4989922.3048699 ls |
| 25000 au | = 12474805.762175 ls |
| 50000 au | = 24949611.52435 ls |
| 100000 au | = 49899223.048699 ls |
| 1000000 au | = 498992230.48699 ls |
| 1000000000 au | = 498992230486.99 ls |