Stefano Sposetti (born 22 December 1958) is a Swiss amateur astronomer and a prolific discoverer of minor planets.
Sposetti took images of 2004 FH, an Aten asteroid that made a sub-lunar flyby of Earth.
[1] In addition, he detects the optical counterparts of gamma-ray bursts and conducts transit photometry on exoplanets at his observatory.
[4] As of 2019, Sposetti's discoveries include 164 minor planets (numbered only).
The Minor Planet Center ranks him 70th in the list of all-time, worldwide discoverers.