Stefano Sposetti (born 22 December 1958) 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 (numbered only). The Minor Planet Center ranks him 70th in the list of all-time, worldwide discoverers. Asteroid 22354 Sposetti has been named after him.

+ Minor planets discovered: 164 see

List of discovered minor planets

12931 Mario 7 October 1999 12932 Conedera 10 October 1999 15077 Edyalge 2 February 1999 16110 Paganetti 28 November 1999 17190 Retopezzoli 28 November 1999 11 October 1999 18872 Tammann 8 November 1999 18874 Raoulbehrend 8 November 1999 19715 Basodino 27 October 1999 20624 Dariozanetti 9 October 1999 21650 Tilgner 17 July 1999 22769 Aurelianora 19 January 1999 22898 Falce 10 October 1999 7 November 1999 11 November 1998 28 November 1999 29753 Silvo 10 February 1999 31555 Wheeler 7 March 1999 33433 Maurilia 14 March 1999 23 March 1999 23 August 2000 23 August 2000 23 August 2000 22 August 2000 28 November 1999 28 November 1999 6 December 1999 41979 Lelumacri 22 December 2000 12 November 1999 12 November 1999 43087 Castegna 28 November 1999 45027 Cosquer 28 November 1999 6 December 1999 6 December 1999 45261 Decoen 2 January 2000 45305 Paulscherrer 4 January 2000 47164 Ticino 10 October 1999 47494 Gerhardangl 4 January 2000 30 November 2000 50033 Perelman 3 January 2000 53252 Sardegna 13 March 1999 53468 Varros 2 January 2000 54522 Menaechmus 23 August 2000 56100 Luisapolli 24 January 1999 59239 Alhazen 7 February 1999 61195 Martinoli 28 July 2000 61384 Arturoromer 22 August 2000 61386 Namikoshi 24 August 2000 61401 Schiff 25 August 2000 61402 Franciseveritt 25 August 2000 62071 Voegtli 8 September 2000 63129 Courtemanche 30 November 2000 66939 Franscini 28 November 1999 67085 Oppenheimer 4 January 2000 67235 Fairbank 5 March 2000 70179 Beppechiara 21 August 1999 70446 Pugh 10 October 1999 70737 Stenflo 8 November 1999 70942 Vandanashiva 28 November 1999 72042 Dequeiroz 17 December 2000 72632 Coralina 23 March 2001 74818 Iten 7 October 1999 75063 Koestler 1 November 1999 75569 IRSOL 2 January 2000 80135 Zanzanini 7 October 1999 87644 Cathomen 8 September 2000 9 September 2000 88146 Castello 30 November 2000 91428 Cortesi 20 August 1999 91429 Michelebianda 30 August 1999 91898 Margnetti 8 November 1999 92525 Delucchi 28 July 2000 92585 Fumagalli 7 August 2000 92614 Kazutami 23 August 2000 23 August 2000 24 August 2000 30 November 2000 96876 Andreamanna 7 October 1999 97069 Stek 12 November 1999 97186 Tore 28 November 1999 20 January 2001 10 October 1999 102224 Raffaellolena 10 October 1999 102617 Allium 12 November 1999 102619 Crespino 12 November 1999 2 January 2000 24 August 2000 17 March 2001 31 October 1999 31 October 1999 30 November 2000 22 December 2000 17 March 2001 5 March 2000 7 November 1999 28 November 1999 25 August 2000 26 January 2000 17 December 2000 11 February 2002 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 15 July 1999 7 December 2005 30 July 2000 26 October 2005 3 March 2002 25 September 2003 199194 Calcatreppola 3 January 2006 16 January 2001 15 February 2005 15 February 2005 5 August 2002 215868 Rohrer 12 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 6 December 2005 22 December 2006 23 December 2006 25 December 2006 4 March 2005 26 October 1999 20 November 2005 30 November 2005 24 December 2006 25 December 2006 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 Aresi 27 December 2006 16 December 2009 30 August 1999 1 March 2005 11 January 2007 18 January 2010 6 February 2005 31 October 2007 15 February 2005 13 March 2007 14 January 2010 9 February 2005 10 November 2005 19 January 2006 6 January 2006 3 November 2007

See also

References

External links 143–Gnosca – The astronomical observatory