(4105) Tsia Main-belt Asteroid
Discovered on 5 March 1989 by E. F. Helin at Palomar.
Where Tsia is today
Seen from above the solar system on 2026-10-14: Tsia is 2.85 au from the Sun and 1.86 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 4105 |
| Provisional designation | 1989 EK |
| Orbit class | Main-belt Asteroid |
| Diameter | 13.3 km (#3,598 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.119 |
| Rotation period | 12.6 hours |
| Absolute magnitude (H) | 12.83 |
| Orbital period | 4.44 years |
| Semi-major axis | 2.70 au |
| Perihelion – aphelion | 2.18 – 3.22 au |
| Eccentricity | 0.193 |
| Inclination | 6.37° |
| 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 5 March 1989
- (4104) Alu
- (4639) Minox
- (5327) Gertwilkens
- (5515) Naderi
- (5583) Braunerova
- (5617) Emelyanenko
- (6126) Hubelmatt
- (6385) Martindavid
- (6856) Bethemmons
More named asteroids discovered by E. F. Helin
- (1982) Cline
- (2048) Dwornik
- (2050) Francis
- (2062) Aten
- (2074) Shoemaker
- (2083) Smither
- (2099) Opik
- (2100) Ra-Shalom
- (2128) Wetherill
- (2143) Jimarnold
- (2220) Hicks
- (2335) James
← (4104) Alu · (4106) Nada →