(20657) Alvarez-Candal Main-belt Asteroid
Discovered on 14 October 1999 by LONEOS at Anderson Mesa.
Alvaro Alvarez-Candal (b. 1977) is a planetary scientist who works at Paris Observatory. Using spectroscopy, he studies minor planets, transneptunian objects and the relationship between minor planets and comets.Naming citation (20080718/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Alvarez-Candal is today
Seen from above the solar system on 2026-10-14: Alvarez-Candal is 2.61 au from the Sun and 1.83 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 20657 |
| Provisional designation | 1999 TL261 |
| Orbit class | Main-belt Asteroid |
| Diameter | 10.4 km (#4,898 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0330 |
| Absolute magnitude (H) | 13.87 |
| Orbital period | 5.49 years |
| Semi-major axis | 3.11 au |
| Perihelion – aphelion | 2.56 – 3.66 au |
| Eccentricity | 0.177 |
| Inclination | 15.0° |
| Closest distance between its orbit and Earth's (MOID) | 1.61 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Alvaro
All asteroids named after someone called Alvaro
Also discovered on 14 October 1999
- (12933) Muzzonigro
- (22903) Georgeclooney
- (22905) Liciniotoso
- (36184) Pavelbozek
- (60008) Jarda
- (91604) Clausmadsen
- (118418) Yangmei
- (157894) Yasminwalter