(20964) Mons Naklethi Main-belt Asteroid
Discovered on 16 October 1977 by A. Mrkos at Klet.
Mons Naklethi is the first known name of Klet Mountain, which was mentioned in the Zlatá Koruna monastery's thirteenth-century documents. This minor planet is the first one credited as a Klet discovery. The name was proposed by M. Tichy.Naming citation (20010509/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Mons Naklethi is today
Seen from above the solar system on 2026-10-14: Mons Naklethi is 2.42 au from the Sun and 3.21 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 20964 |
| Provisional designation | 1977 UA |
| Orbit class | Main-belt Asteroid |
| Diameter | 3.98 km (#12,783 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.285 |
| Rotation period | 16.1 hours |
| Absolute magnitude (H) | 14.32 |
| Orbital period | 3.68 years |
| Semi-major axis | 2.38 au |
| Perihelion – aphelion | 1.93 – 2.84 au |
| Eccentricity | 0.190 |
| Inclination | 9.31° |
| Closest distance between its orbit and Earth's (MOID) | 0.955 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 16 October 1977
- (3798) de Jager
- (3936) Elst
- (4044) Erikhog
- (4108) Rakos
- (4722) Agelaos
- (4753) Phidias
- (4754) Panthoos
- (5610) Balster
- (5699) Munch
- (5700) Homerus
- (5984) Lysippus
- (6055) Brunelleschi