Question: how many minor planets in the solar system?
Answer: As of June 2020, there are 546,077 numbered minor planets (secured discoveries) out of a total of 959,226 observed bodies, with the remainder being unnumbered minor planets. The catalog's first object is 1 Ceres, discovered by Giuseppe Piazzi in 1801, while its best-known entry is Pluto, listed as 134340 Pluto.