(16525) Shumarinaiko Main-belt Asteroid
Discovered on 14 February 1991 by Endate, K., Watanabe, K. at Kitami.
Lake Shumarinai is located in the western part of the Nayoro basin. It was created artificially in 1943 by damming the River Uryuu for irrigation and the generation of hydraulic electricity. As one of the prefectural natural parks, the lake is well known for its beautiful scenery.Naming citation (20051215/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Shumarinaiko is today
Seen from above the solar system on 2026-10-14: Shumarinaiko is 2.73 au from the Sun and 1.73 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 16525 |
| Provisional designation | 1991 CU2 |
| Orbit class | Main-belt Asteroid |
| Diameter | 5.25 km (#10,137 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.306 |
| Rotation period | 2.59 hours |
| Absolute magnitude (H) | 13.8 |
| Orbital period | 3.72 years |
| Semi-major axis | 2.40 au |
| Perihelion – aphelion | 2.07 – 2.73 au |
| Eccentricity | 0.139 |
| Inclination | 2.42° |
| Closest distance between its orbit and Earth's (MOID) | 1.07 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 14 February 1991
- (4774) Hobetsu
- (5651) Traversa
- (5878) Charlene
- (6323) Karoji
- (6646) Churanta
- (6723) Chrisclark
- (8167) Ishii