(12513) Niven Main-belt Asteroid
Discovered on 27 April 1998 by P. G. Comba at Prescott.
Ivan M. Niven (1915-1999) was a Canadian-U.S. mathematician who worked mainly in number theory. In 1943 he completed the proof of Waring's conjecture, a conjecture formulated in 1770 to the effect that every positive integer is the sum of a finite number of n-th powers of integers.Naming citation (20000124/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Niven is today
Seen from above the solar system on 2026-10-14: Niven is 2.43 au from the Sun and 3.39 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 12513 |
| Provisional designation | 1998 HC20 |
| Orbit class | Main-belt Asteroid |
| Diameter | 2.48 km (#16,303 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.263 |
| Absolute magnitude (H) | 15.12 |
| Orbital period | 3.16 years |
| Semi-major axis | 2.15 au |
| Perihelion – aphelion | 1.77 – 2.54 au |
| Eccentricity | 0.179 |
| Inclination | 2.24° |
| Closest distance between its orbit and Earth's (MOID) | 0.763 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Ivan
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- (17002) Kouzel
- (20045) Semeniuk
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