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Convert astronomical units (AU) to kilometers (km) for space distance calculations
| Astronomical Units (AU) | Kilometers (km) |
|---|---|
| 0.1 | 14,959,787.07 |
| 0.5 | 74,798,935.35 |
| 1 | 149,597,870.7 |
| 2 | 299,195,741.4 |
| 5 | 747,989,353.5 |
| 10 | 1,495,978,707 |
| 20 | 2,991,957,414 |
| 30 | 4,487,936,121 |
| 40 | 5,983,914,828 |
| 50 | 7,479,893,535 |
| 100 | 14,959,787,070 |
An astronomical unit (AU) is a unit of length used primarily in astronomy to measure distances within our solar system. One AU represents the average distance from Earth to the Sun, approximately 149,597,870.7 kilometers or about 93 million miles. This unit provides a convenient way to express and compare planetary distances without using extremely large numbers. The AU was officially defined by the International Astronomical Union in 2012 as exactly 149,597,870,700 meters. It serves as a fundamental baseline for measuring interplanetary distances and helps astronomers and space scientists communicate distances in a more comprehensible scale.
Converting astronomical units to kilometers is straightforward using this formula:
Kilometers = Astronomical Units × 149,597,870.7To convert 5 AU to kilometers:
5 AU × 149,597,870.7 = 747,989,353.5 km
This distance represents approximately the distance from the Sun to Jupiter at its closest approach. The conversion is essential for calculating spacecraft trajectories, understanding orbital mechanics, and comparing distances between celestial objects in our solar system.
One astronomical unit (AU) equals exactly 149,597,870.7 kilometers. This is the average distance from Earth to the Sun.
The AU provides a more manageable scale for expressing distances within our solar system. Using AU makes it easier to compare planetary distances without dealing with hundreds of millions of kilometers.
Mars orbits at approximately 1.524 AU from the Sun, which equals about 227,943,824 kilometers. This distance varies as Mars follows its elliptical orbit.
No, they are vastly different. One light year equals about 63,241 AU. Light years are used for interstellar distances, while AU is used for distances within our solar system.
Pluto orbits at an average distance of about 39.5 AU from the Sun, which equals approximately 5,906,376,272 kilometers (nearly 6 billion km).
The conversion is extremely precise. The AU was defined by the International Astronomical Union in 2012 as exactly 149,597,870,700 meters (149,597,870.7 km), making it a standard reference for astronomical calculations.
While technically possible, AU is rarely used for interstellar distances. For distances to nearby stars, astronomers prefer parsecs or light years. However, our converter can handle any AU value you need to convert.