(12664) Sonisenia Main-belt Asteroid
Discovered on 27 September 1978 by L. I. Chernykh at Nauchnyj.
Sonya (Sofiya) and Senya (Semen) are charming and talented children of Mark Ziselevich Orlovskij, Kiev journalist, executive in the publishing trade and friend of the discoverer.Naming citation (20030501/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Sonisenia is today
Seen from above the solar system on 2026-10-14: Sonisenia is 2.92 au from the Sun and 3.91 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 12664 |
| Provisional designation | 1978 SS5 |
| Orbit class | Main-belt Asteroid |
| Diameter | 7.35 km (#7,265 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0750 |
| Absolute magnitude (H) | 14.45 |
| Orbital period | 4.15 years |
| Semi-major axis | 2.58 au |
| Perihelion – aphelion | 2.17 – 2.99 au |
| Eccentricity | 0.159 |
| Inclination | 2.76° |
| Closest distance between its orbit and Earth's (MOID) | 1.17 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 27 September 1978
- (2212) Hephaistos
- (2894) Kakhovka
- (3010) Ushakov
- (3608) Kataev
- (4235) Tatishchev
- (4685) Karetnikov
- (4758) Hermitage
- (5711) Eneev
- (5795) Roshchina
- (6166) Univsima
- (7370) Krasnogolovets
- (7978) Niknesterov