(13365) Tenzinyama Main-belt Asteroid
Discovered on 26 October 1998 by T. Okuni at Nanyo.
Tenzinyama is a mountain in the western part of Iwamuro village, Niigata prefecture. There is a castle at the summit of the 250-meter mountain.Naming citation (20020624/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Tenzinyama is today
Seen from above the solar system on 2026-10-14: Tenzinyama is 3.34 au from the Sun and 4.09 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 13365 |
| Provisional designation | 1998 UL20 |
| Orbit class | Main-belt Asteroid |
| Diameter | 9.41 km (#5,475 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.219 |
| Absolute magnitude (H) | 12.91 |
| Orbital period | 5.28 years |
| Semi-major axis | 3.03 au |
| Perihelion – aphelion | 2.72 – 3.35 au |
| Eccentricity | 0.104 |
| Inclination | 8.89° |
| Closest distance between its orbit and Earth's (MOID) | 1.72 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 26 October 1998
More named asteroids discovered by T. Okuni
- (7039) Yamagata
- (8220) Nanyou
- (8418) Mogamigawa
- (8723) Azumayama
- (8730) Iidesan
- (8747) Asahi
- (8922) Kumanodake
- (8937) Gassan
- (9110) Choukai
- (9128) Takatumuzi
- (9990) Niiyaeki
- (10405) Yoshiaki
← (13358) Revelle · (13367) Jiri →