(4691) Toyen Main-belt Asteroid
Discovered on 7 October 1983 by A. Mrkos at Klet.
Named in memory of Toyen (1902-1980), Czech painter and graphic artist, born Marie Čermínová. She is known for her imaginative abstraction, called artificialism, resulting in a surrealistic style. Name suggested by J. Ticha.Naming citation (19990402/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Toyen is today
Seen from above the solar system on 2026-10-14: Toyen is 2.47 au from the Sun and 3.45 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 4691 |
| Provisional designation | 1983 TU |
| Orbit class | Main-belt Asteroid |
| Diameter | 7.09 km (#7,528 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.221 |
| Rotation period | 3.50 hours |
| Absolute magnitude (H) | 13.78 |
| Orbital period | 3.41 years |
| Semi-major axis | 2.26 au |
| Perihelion – aphelion | 1.82 – 2.71 au |
| Eccentricity | 0.196 |
| Inclination | 5.87° |
| Closest distance between its orbit and Earth's (MOID) | 0.821 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.