Convertisseur d'Unité Astronomique
Convertissez les unités astronomiques en kilomètres ou miles.
AU
Kilomètres
149,597,870.7 km
Miles92,955,807.3 mi
Light-Minutes8.3167 light-min
Kilometres vs Distance
Formule
## The Astronomical Unit **1 AU = 149 597 870.7 km (exact, IAU 2012)** Light takes about 8.317 minutes to travel 1 AU. The AU is the fundamental baseline for solar system distances.
Exemple Résolu
Jupiter orbits at about 5.2 AU.
- 01km = 5.2 × 149 597 870.7 ≈ 778 million km
- 02Light-minutes = 5.2 × 8.317 = 43.2
- 03Light takes about 43 minutes to reach Jupiter from the Sun.
Questions Fréquentes
How was the AU originally measured?
Through transits of Venus and radar ranging. Since 2012 the IAU defines it as exactly 149 597 870 700 m.
How many AU to the nearest star?
Proxima Centauri is about 268 000 AU away.
What is 1 AU in light-time?
Light takes 499.0 seconds (8 min 19 s) to travel 1 AU.