(54403) Langersek Main-belt Asteroid
Discovered on 4 June 2000 by J. Broughton at Reedy Creek.
Renato Langersek (b. 1964) is a Slovenian-Australian occultation observer who co-discovered dwarf-planet Quaoar's unique Q1R ring, having recorded a star's brief disappearance in 2021. The discovery surprised the science community when it was announced in 2023. The ring is an enigma in that its radial distance far exceeds the long-established Roche Limit.Naming citation (WGSBN Bull. 5, #19, 7), IAU / Minor Planet Center, via NASA/JPL
Where Langersek is today
Seen from above the solar system on 2026-10-14: Langersek is 2.84 au from the Sun and 2.78 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 54403 |
| Provisional designation | 2000 LD2 |
| Orbit class | Main-belt Asteroid |
| Diameter | 6.17 km (#8,679 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0670 |
| Absolute magnitude (H) | 14.85 |
| Orbital period | 4.28 years |
| Semi-major axis | 2.64 au |
| Perihelion – aphelion | 2.22 – 3.06 au |
| Eccentricity | 0.160 |
| Inclination | 11.1° |
| Closest distance between its orbit and Earth's (MOID) | 1.25 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Renato
All asteroids named after someone called Renato
Also discovered on 4 June 2000
- (17270) Nolthenius
- (30421) Jameschafer
- (30430) Robertoegel
- (30431) Michaeltran
- (32131) Ravindran
- (32132) Andrewamini
- (54402) Jonathanbradshaw