Understanding the Units
* Astronomical Unit (AU): An AU is the average distance between the Earth and the Sun. It's a convenient unit for measuring distances within our solar system. 1 AU is approximately 149.6 million kilometers.
* Kilometers (km): A standard unit of distance.
Mercury's Distance from the Sun
* Average Distance: Mercury's average distance from the Sun is about 57.9 million kilometers.
* Converting to AU: To convert kilometers to AU, divide the distance in kilometers by the number of kilometers in one AU:
57.9 million km / 149.6 million km/AU ≈ 0.387 AU
Therefore, the distance between the Sun and Mercury is approximately 0.387 AU.