(15673) Chetaev Mars-crossing Asteroid
Discovered on 8 August 1978 by N. S. Chernykh at Nauchnyj.
Soviet mathematician and mechanician Nikolaj Gur'evich Chetaev (1902-1959), a professor at the universities in Kazan and Moscow, made valuable contributions to analytical mechanics and stability theory.Naming citation (20010902/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Chetaev is today
Seen from above the solar system on 2026-10-14: Chetaev is 2.52 au from the Sun and 3.50 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 15673 |
| Provisional designation | 1978 PV2 |
| Orbit class | Mars-crossing Asteroid |
| Diameter | 3.00 km (#15,219 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.362 |
| Rotation period | 102 hours |
| Absolute magnitude (H) | 14.47 |
| Orbital period | 3.28 years |
| Semi-major axis | 2.21 au |
| Perihelion – aphelion | 1.61 – 2.80 au |
| Eccentricity | 0.269 |
| Inclination | 5.37° |
| Closest distance between its orbit and Earth's (MOID) | 0.600 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Nikolaj
- (2233) Kuznetsov
- (2238) Steshenko
- (2342) Lebedev
- (3958) Komendantov
- (4067) Mikhel'son
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- (4233) Pal'chikov
- (4654) Gor'kavyj
- (5075) Goryachev
- (5087) Emel'yanov
- (5158) Ogarev
- (6483) Nikolajvasil'ev
All asteroids named after someone called Nikolaj
Also discovered on 8 August 1978
- (2431) Skovoroda
- (2626) Belnika
- (2627) Churyumov
- (2794) Kulik
- (2916) Voronveliya
- (3027) Shavarsh
- (3195) Fedchenko
- (3599) Basov
- (4141) Nintanlena
- (4920) Gromov
- (6165) Frolova
- (6219) Demalia