(20625) Noto Main-belt Asteroid
Discovered on 9 October 1999 by A. Tsuchikawa at Yanagida.
The Noto Peninsula is located in Japan's geographical center, facing the Sea of Japan. The U.S. astronomer Percival Lowell visited the peninsula in 1889. His travelogue, Noto: An Unexplored Corner of Japan, was published in 1891.Naming citation (20010509/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Noto is today
Seen from above the solar system on 2026-10-14: Noto is 2.97 au from the Sun and 3.84 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 20625 |
| Provisional designation | 1999 TG20 |
| Orbit class | Main-belt Asteroid |
| Diameter | 5.09 km (#10,453 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.206 |
| Absolute magnitude (H) | 14.1 |
| Orbital period | 5.05 years |
| Semi-major axis | 2.94 au |
| Perihelion – aphelion | 2.85 – 3.04 au |
| Eccentricity | 0.0317 |
| Inclination | 2.99° |
| Closest distance between its orbit and Earth's (MOID) | 1.86 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 9 October 1999
- (20624) Dariozanetti
- (20656) Samuelgrant
- (25372) Shanagarza
- (28411) Xiuqicao
- (36213) Robertotisgreen
- (40917) Pauljorden
- (40919) Johntonry
- (40981) Stephenholland
- (70444) Genovali