(23733) Hyojiyun Main-belt Asteroid
Discovered on 23 April 1998 by LINEAR at Socorro.
Hyo Ji Yun (b. 1989) was awarded second place in the 2007 Intel International Science and Engineering Fair for his materials and bioengineering team project. He attends the Tianjin International School, Tianjin, China.Naming citation (20070828/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Hyojiyun is today
Seen from above the solar system on 2026-10-14: Hyojiyun is 2.68 au from the Sun and 2.80 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 23733 |
| Provisional designation | 1998 HE123 |
| Orbit class | Main-belt Asteroid |
| Diameter | 3.06 km (#15,070 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.227 |
| Absolute magnitude (H) | 14.67 |
| Orbital period | 3.72 years |
| Semi-major axis | 2.40 au |
| Perihelion – aphelion | 2.13 – 2.68 au |
| Eccentricity | 0.115 |
| Inclination | 7.85° |
| Closest distance between its orbit and Earth's (MOID) | 1.11 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 23 April 1998
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- (11367) Rachelseevers
- (11723) Briankennedy
- (12097) Peterlowen
- (12099) Meigooni
- (12525) Kathleenloia
- (19484) Vanessaspini
- (19487) Rosscoleman
- (19488) Abramcoley
- (20345) Davidvito
- (20346) Firre
- (20347) Wunderlich