(5423) Horahorejs Main-belt Asteroid
Discovered on 16 February 1983 by Z. Vavrova at Klet.
Petr Hora Hořejš (b. 1938) is a Czech journalist, screenwriter and novelist. He wrote a thirteen book series about Czech history Toulky českou minulostí (Rambles Through Czech History).Naming citation (WGSBN Bull. 3, #14, 7), IAU / Minor Planet Center, via NASA/JPL
Where Horahorejs is today
Seen from above the solar system on 2026-10-14: Horahorejs is 2.03 au from the Sun and 1.97 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 5423 |
| Provisional designation | 1983 DC |
| Orbit class | Main-belt Asteroid |
| Diameter | 8.88 km (#5,847 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0620 |
| Absolute magnitude (H) | 14.18 |
| Orbital period | 3.67 years |
| Semi-major axis | 2.38 au |
| Perihelion – aphelion | 2.00 – 2.76 au |
| Eccentricity | 0.160 |
| Inclination | 2.68° |
| Closest distance between its orbit and Earth's (MOID) | 1.02 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
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