Asteroids discovered on September 20
123 named asteroids.
| # | Asteroid | Discovered | Discoverer |
|---|---|---|---|
| 1 | (377) Campania | 1893-09-20 | A. Charlois |
| 2 | (515) Athalia | 1903-09-20 | M. F. Wolf |
| 3 | (516) Amherstia | 1903-09-20 | R. S. Dugan |
| 4 | (2017) Wesson | 1903-09-20 | M. F. Wolf |
| 5 | (673) Edda | 1908-09-20 | J. H. Metcalf |
| 6 | (831) Stateira | 1916-09-20 | M. F. Wolf |
| 7 | (832) Karin | 1916-09-20 | M. F. Wolf |
| 8 | (833) Monica | 1916-09-20 | M. F. Wolf |
| 9 | (834) Burnhamia | 1916-09-20 | M. F. Wolf |
| 10 | (1190) Pelagia | 1930-09-20 | G. N. Neujmin |
| 11 | (1269) Rollandia | 1930-09-20 | G. N. Neujmin |
| 12 | (1725) CrAO | 1930-09-20 | G. N. Neujmin |
| 13 | (2752) Wu Chien-Shiung | 1965-09-20 | Purple Mountain Observatory |
| 14 | (4913) Wangxuan | 1965-09-20 | Purple Mountain Observatory |
| 15 | (1921) Pala | 1973-09-20 | T. Gehrels |
| 16 | (11251) Icarion | 1973-09-20 | van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. |
| 17 | (34993) Euaimon | 1973-09-20 | van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. |
| 18 | (3260) Vizbor | 1974-09-20 | L. V. Zhuravleva |
| 19 | (3771) Alexejtolstoj | 1974-09-20 | L. V. Zhuravleva |
| 20 | (5301) Novobranets | 1974-09-20 | L. V. Zhuravleva |
| 21 | (4050) Mebailey | 1976-09-20 | Lagerkvist, C.-I., Rickman, H. |
| 22 | (5934) Mats | 1976-09-20 | Lagerkvist, C.-I., Rickman, H. |
| 23 | (6111) Davemckay | 1979-09-20 | S. J. Bus |
| 24 | (6757) Addibischoff | 1979-09-20 | S. J. Bus |
| 25 | (8247) Cherylhall | 1979-09-20 | S. J. Bus |
| 26 | (3043) San Diego | 1982-09-20 | E. F. Helin |
| 27 | (4116) Elachi | 1982-09-20 | E. F. Helin |
| 28 | (5314) Wilkickia | 1982-09-20 | N. S. Chernykh |
| 29 | (8141) Nikolaev | 1982-09-20 | N. S. Chernykh |
| 30 | (3465) Trevires | 1984-09-20 | H. Debehogne |
| 31 | (3490) Solc | 1984-09-20 | A. Mrkos |
| 32 | (3983) Sakiko | 1984-09-20 | A. Mrkos |
| 33 | (5425) Vojtech | 1984-09-20 | A. Mrkos |
| 34 | (7328) Casanova | 1984-09-20 | A. Mrkos |
| 35 | (7867) Burian | 1984-09-20 | A. Mrkos |
| 36 | (9011) Angelou | 1984-09-20 | A. Mrkos |
| 37 | (7463) Oukawamine | 1985-09-20 | T. Seki |
| 38 | (3903) Kliment Ohridski | 1987-09-20 | E. W. Elst |
| 39 | (5002) Marnix | 1987-09-20 | E. W. Elst |
| 40 | (6267) Rozhen | 1987-09-20 | E. W. Elst |
| 41 | (9309) Platanus | 1987-09-20 | E. W. Elst |
| 42 | (5396) Kathleenhowell | 1988-09-20 | H. Debehogne |
| 43 | (15723) Girraween | 1990-09-20 | T. Seki |
| 44 | (19156) Heco | 1990-09-20 | T. Seki |
| 45 | (23468) Kannabe | 1990-09-20 | T. Seki |
| 46 | (6525) Ocastron | 1992-09-20 | Child, J. B., Fisch, G. |
| 47 | (6339) Giliberti | 1993-09-20 | V. S. Casulli |
| 48 | (11573) Helmholtz | 1993-09-20 | Borngen, F., Schmadel, L. D. |
| 49 | (7442) Inouehideo | 1995-09-20 | Endate, K., Watanabe, K. |
| 50 | (8560) Tsubaki | 1995-09-20 | Endate, K., Watanabe, K. |
| 51 | (9088) Maki | 1995-09-20 | Endate, K., Watanabe, K. |
| 52 | (11978) Makotomasako | 1995-09-20 | Endate, K., Watanabe, K. |
| 53 | (12408) Fujioka | 1995-09-20 | A. Nakamura |
| 54 | (12411) Tannokayo | 1995-09-20 | Endate, K., Watanabe, K. |
| 55 | (12412) Muchisachie | 1995-09-20 | Endate, K., Watanabe, K. |
| 56 | (12787) Abetadashi | 1995-09-20 | Endate, K., Watanabe, K. |
| 57 | (13156) Mannoucyo | 1995-09-20 | Endate, K., Watanabe, K. |
| 58 | (15843) Comcom | 1995-09-20 | Endate, K., Watanabe, K. |
| 59 | (16713) Airashi | 1995-09-20 | Endate, K., Watanabe, K. |
| 60 | (17603) Qoyllurwasi | 1995-09-20 | Endate, K., Watanabe, K. |
| 61 | (20112) Cassia | 1995-09-20 | Spacewatch |
| 62 | (22409) Nagatohideaki | 1995-09-20 | Endate, K., Watanabe, K. |
| 63 | (24830) Kawanotomoyoshi | 1995-09-20 | Endate, K., Watanabe, K. |
| 64 | (46649) Tsudahiroyuki | 1995-09-20 | Endate, K., Watanabe, K. |
| 65 | (48635) Murata | 1995-09-20 | Endate, K., Watanabe, K. |
| 66 | (90820) McCann | 1995-09-20 | AMOS |
| 67 | (96268) Tomcarr | 1995-09-20 | T. B. Spahr |
| 68 | (19298) Zhongkeda | 1996-09-20 | Beijing Schmidt CCD Asteroid Program |
| 69 | (20145) Chiachiaolin | 1996-09-20 | Beijing Schmidt CCD Asteroid Program |
| 70 | (10215) Lavilledemirmont | 1997-09-20 | L. Sarounova |
| 71 | (13226) Soulie | 1997-09-20 | L. Sarounova |
| 72 | (14541) Sacrobosco | 1997-09-20 | M. Tichý J. Tichá |
| 73 | (15382) Vian | 1997-09-20 | L. Sarounova |
| 74 | (26969) Biver | 1997-09-20 | Tichy, M., Ticha, J. |
| 75 | (48782) Fierz | 1997-09-20 | L. Sarounova |
| 76 | (11376) Taizomuta | 1998-09-20 | Spacewatch |
| 77 | (11385) Beauvoir | 1998-09-20 | E. W. Elst |
| 78 | (12561) Howard | 1998-09-20 | Spacewatch |
| 79 | (13329) Davidhardy | 1998-09-20 | Spacewatch |
| 80 | (13350) Gmelin | 1998-09-20 | E. W. Elst |
| 81 | (13351) Zibeline | 1998-09-20 | E. W. Elst |
| 82 | (13770) Commerson | 1998-09-20 | E. W. Elst |
| 83 | (14611) Elsaadawi | 1998-09-20 | E. W. Elst |
| 84 | (15022) Francinejackson | 1998-09-20 | E. W. Elst |
| 85 | (22740) Rayleigh | 1998-09-20 | E. W. Elst |
| 86 | (23884) Karenharvey | 1998-09-20 | R. A. Tucker |
| 87 | (26276) Natrees | 1998-09-20 | P. G. Comba |
| 88 | (26277) Ianrees | 1998-09-20 | P. G. Comba |
| 89 | (38046) Krasnoyarsk | 1998-09-20 | E. W. Elst |
| 90 | (40227) Tahiti | 1998-09-20 | E. W. Elst |
| 91 | (56000) Mesopotamia | 1998-09-20 | E. W. Elst |
| 92 | (69870) Fizeau | 1998-09-20 | E. W. Elst |
| 93 | (91199) Johngray | 1998-09-20 | E. W. Elst |
| 94 | (96535) Schiehallion | 1998-09-20 | CSS |
| 95 | (19806) Domatthews | 2000-09-20 | LINEAR |
| 96 | (25884) Asai | 2000-09-20 | BATTeRS |
| 97 | (34418) Juliegodfrey | 2000-09-20 | LINEAR |
| 98 | (34419) Corning | 2000-09-20 | A. J. Cecce |
| 99 | (36782) Okauchitakashige | 2000-09-20 | BATTeRS |
| 100 | (213197) Lessac-Chenen | 2000-09-20 | M. W. Buie |
| 101 | (34792) Hsiehcheching | 2001-09-20 | W. K. Y. Yeung |
| 102 | (34814) Muthukumar | 2001-09-20 | LINEAR |
| 103 | (34815) Wongfaye | 2001-09-20 | W. K. Y. Yeung |
| 104 | (34816) Billybarr | 2001-09-20 | W. K. Y. Yeung |
| 105 | (55330) Shekwaihung | 2001-09-20 | W. K. Y. Yeung |
| 106 | (88786) Thanadelthur | 2001-09-20 | LINEAR |
| 107 | (88795) Morvan | 2001-09-20 | J.-C. Merlin |
| 108 | (110073) Leeonki | 2001-09-20 | W. K. Y. Yeung |
| 109 | (110074) Lamchunhei | 2001-09-20 | W. K. Y. Yeung |
| 110 | (110077) Pujiquanshan | 2001-09-20 | W. K. Y. Yeung |
| 111 | (135268) Haignere | 2001-09-20 | J.-C. Merlin |
| 112 | (158222) Manicolas | 2001-09-20 | J.-C. Merlin |
| 113 | (78948) Pietrasanta | 2003-09-20 | CINEOS |
| 114 | (240364) Kozmutza | 2003-09-20 | Sarneczky, K., Sip\ Hocz, B. |
| 115 | (242235) Marieskalova | 2003-09-20 | KLENOT |
| 116 | (287787) Karady | 2003-09-20 | Sarneczky, K., Sipocz, B. |
| 117 | (338578) Csapodyvera | 2003-09-20 | Sarneczky, K., Sipocz, B. |
| 118 | (390743) Telkesmaria | 2003-09-20 | B. SipÅcz K. Sárneczky |
| 119 | (399565) Devenyanna | 2003-09-20 | B. SipÅcz K. Sárneczky |
| 120 | (413233) Varkonyiagnes | 2003-09-20 | B. SipÅcz K. Sárneczky |
| 121 | (348239) Societadante | 2004-09-20 | Andrushivka |
| 122 | (246247) Sheldoncooper | 2007-09-20 | Ye, Q.-z., Lin, H.-C. |
| 123 | (407041) Olganevskaya | 2009-09-20 | V. Nevski |