Asteroids discovered on January 20
57 named asteroids.
| # | Asteroid | Discovered | Discoverer |
|---|---|---|---|
| 1 | (355) Gabriella | 1893-01-20 | A. Charlois |
| 2 | (1040) Klumpkea | 1925-01-20 | B. Jekhovsky |
| 3 | (1163) Saga | 1930-01-20 | K. Reinmuth |
| 4 | (1534) Nasi | 1939-01-20 | Y. Vaisala |
| 5 | (1929) Kollaa | 1939-01-20 | Y. Vaisala |
| 6 | (4512) Sinuhe | 1939-01-20 | Y. Vaisala |
| 7 | (1558) Jarnefelt | 1942-01-20 | L. Oterma |
| 8 | (1559) Kustaanheimo | 1942-01-20 | L. Oterma |
| 9 | (3960) Chaliubieju | 1955-01-20 | Purple Mountain Observatory |
| 10 | (2086) Newell | 1966-01-20 | Indiana University |
| 11 | (3678) Mongmanwai | 1966-01-20 | Purple Mountain Observatory |
| 12 | (7368) Haldancohn | 1966-01-20 | Indiana University |
| 13 | (8126) Chanwainam | 1966-01-20 | Purple Mountain Observatory |
| 14 | (3103) Eger | 1982-01-20 | M. Lovas |
| 15 | (6765) Fibonacci | 1982-01-20 | L. Brozek |
| 16 | (6817) Pest | 1982-01-20 | A. Mrkos |
| 17 | (3866) Langley | 1988-01-20 | H. Debehogne |
| 18 | (5728) Umbertobenvenuti | 1988-01-20 | H. Debehogne |
| 19 | (11847) Winckelmann | 1988-01-20 | F. Borngen |
| 20 | (7527) Marples | 1993-01-20 | T. Urata |
| 21 | (7776) Takeishi | 1993-01-20 | T. Urata |
| 22 | (8533) Oohira | 1993-01-20 | T. Urata |
| 23 | (16599) Shorland | 1993-01-20 | Kushida, Y., Muramatsu, O. |
| 24 | (9408) Haseakira | 1995-01-20 | T. Kobayashi |
| 25 | (10922) Thomaslam | 1998-01-20 | LINEAR |
| 26 | (16874) Kurtwahl | 1998-01-20 | LINEAR |
| 27 | (35427) Chelseawang | 1998-01-20 | LINEAR |
| 28 | (10424) Gaillard | 1999-01-20 | ODAS |
| 29 | (10425) Landfermann | 1999-01-20 | ODAS |
| 30 | (16007) Kaasalainen | 1999-01-20 | ODAS |
| 31 | (28251) Gerbaldi | 1999-01-20 | ODAS |
| 32 | (56095) Buniatishvili | 1999-01-20 | ODAS |
| 33 | (59199) Jorisbossard | 1999-01-20 | ODAS |
| 34 | (59211) Bernardfort | 1999-01-20 | ODAS |
| 35 | (66197) Isabosc | 1999-01-20 | ODAS |
| 36 | (66198) Micheltallon | 1999-01-20 | ODAS |
| 37 | (66200) Gibis | 1999-01-20 | ODAS |
| 38 | (79896) Billhaley | 1999-01-20 | Klet |
| 39 | (121018) Malvinabilleres | 1999-01-20 | ODAS |
| 40 | (121019) Minodamato | 1999-01-20 | Mallia, F., Di Sora, M. |
| 41 | (121022) Galliano | 1999-01-20 | ODAS |
| 42 | (23318) Salvadorsanchez | 2001-01-20 | J. Nomen |
| 43 | (23322) Duyingsewa | 2001-01-20 | LINEAR |
| 44 | (23323) Anand | 2001-01-20 | LINEAR |
| 45 | (23324) Kwak | 2001-01-20 | LINEAR |
| 46 | (23325) Arroyo | 2001-01-20 | LINEAR |
| 47 | (23327) Luchernandez | 2001-01-20 | LINEAR |
| 48 | (24509) Joycechai | 2001-01-20 | LINEAR |
| 49 | (34680) Anahumphrey | 2001-01-20 | LINEAR |
| 50 | (34681) Suhahussain | 2001-01-20 | LINEAR |
| 51 | (427496) van de Weg | 2002-01-20 | NEAT |
| 52 | (315012) Hutchings | 2007-01-20 | D. D. Balam |
| 53 | (576186) Lefebvre | 2007-01-20 | K. M. Perrett D. D. Balam |
| 54 | (611585) Bergbusch | 2007-01-20 | K. M. Perrett D. D. Balam |
| 55 | (598719) Alegalli | 2009-01-20 | Spacewatch |
| 56 | (454505) Suntharalingam | 2010-01-20 | WISE |
| 57 | (600539) Aldoatiglio | 2012-01-20 | N. Falla |