Stefano Sposetti


Stefano Sposetti is a Swiss amateur astronomer and a prolific discoverer of minor planets. He lives in Gnosca, in the Italian-speaking part of Switzerland in the Ticino Alps, where the Gnosca Observatory is located.
Sposetti took images of 2004 FH, an Aten asteroid that made a sub-lunar flyby of Earth. In addition, he detects the optical counterparts of gamma-ray bursts and conducts transit photometry on exoplanets at his observatory.
As of 2019, Sposetti's discoveries include 164 minor planets. The Minor Planet Center ranks him 70th in the list of all-time, worldwide discoverers. Asteroid 22354 Sposetti has been named after him.
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List of discovered minor planets

12931 Mario7 October 1999
12932 Conedera10 October 1999
15077 Edyalge2 February 1999
16110 Paganetti28 November 1999
17190 Retopezzoli28 November 1999
11 October 1999
18872 Tammann8 November 1999
18874 Raoulbehrend8 November 1999
19715 Basodino27 October 1999
20624 Dariozanetti9 October 1999

23 August 2000
23 August 2000
23 August 2000
22 August 2000
28 November 1999
28 November 1999
6 December 1999
41979 Lelumacri22 December 2000
12 November 1999
12 November 1999

53252 Sardegna13 March 1999
53468 Varros2 January 2000
54522 Menaechmus23 August 2000
56100 Luisapolli24 January 1999
59239 Alhazen7 February 1999
61195 Martinoli28 July 2000
61384 Arturoromer22 August 2000
61386 Namikoshi24 August 2000
61401 Schiff25 August 2000
61402 Franciseveritt25 August 2000

72632 Coralina23 March 2001
74818 Iten7 October 1999
75063 Koestler1 November 1999
75569 IRSOL2 January 2000
80135 Zanzanini7 October 1999
87644 Cathomen8 September 2000
9 September 2000
88146 Castello30 November 2000
91428 Cortesi20 August 1999
91429 Michelebianda30 August 1999

20 January 2001
10 October 1999
102224 Raffaellolena10 October 1999
102617 Allium12 November 1999
102619 Crespino12 November 1999
2 January 2000
24 August 2000
17 March 2001
31 October 1999
31 October 1999

16 February 2005
1 March 2005
6 December 1999
26 February 2005
20 August 1999
4 February 2005
10 October 1999
12 November 1999
7 February 2005
10 October 2006

5 August 2002
215868 Rohrer12 March 2005
11 October 1999
7 November 1999
25 December 2005
20 November 2005
29 August 2005
28 November 1999
9 February 2005
6 December 2005

3 January 2000
15 February 2005
8 February 2005
9 December 2005
22 October 2007
6 December 1999
10 November 2005
24 December 2006
332326 Aresi27 December 2006
16 December 2009

10 November 2005
19 January 2006
6 January 2006
3 November 2007