Closest planet to the sun
- Who
- Mercury
- What
- 87.9684 day(s)
- Where
- United Kingdom (Inner Solar System)
- When
- 01 January 0001
Mercury, which orbits the Sun at a mean distance of 57,909,083 km (35,983,036 miles), has an orbital period of 87.9684 days.
It is, by definition, also the fastest planet.