Largest asteroid in the main asteroid belt
- Who
- 1 Ceres
- What
- 941 kilometre(s)
- Where
- Italy (Palermo,)
- When
- 01 January 0001
The largest asteroid is 1 Ceres (the first discovered, by G. Piazzi at Palermo, Sicily on 1 January 1801), with an average diameter of 941 km (584.7 miles). As of 2017, it is now considered a "dwarf planet".