(20387) Iharkacsillik Main-belt Asteroid
Discovered on 23 May 1998 by LINEAR at Socorro.
Iharka Magdolna Csillik (b. 1975) is a Romanian astronomer at the Astronomical Institute of the Romanian Academy, Cluj-Napoca branch. Her studies include dynamics of asteroids by numerical integration over long periods and computation of ephemerides.Naming citation (WGSBN Bull. 6, #11, 16), IAU / Minor Planet Center, via NASA/JPL
Where Iharkacsillik is today
Seen from above the solar system on 2026-10-14: Iharkacsillik is 2.37 au from the Sun and 2.27 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 20387 |
| Provisional designation | 1998 KP54 |
| Orbit class | Main-belt Asteroid |
| Diameter | 11.1 km (#4,516 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0690 |
| Absolute magnitude (H) | 13.62 |
| Orbital period | 4.62 years |
| Semi-major axis | 2.78 au |
| Perihelion – aphelion | 2.35 – 3.20 au |
| Eccentricity | 0.154 |
| Inclination | 13.9° |
| Closest distance between its orbit and Earth's (MOID) | 1.36 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 23 May 1998
- (12864) Ryandrake
- (18730) Wingip
- (18731) Vil'bakirov
- (19494) Gerbs
- (19495) Terentyeva
- (19500) Hillaryfultz
- (20366) Bonev
- (20367) Erikagibb
- (20382) Hiroshinaraoka
- (20383) Hirotakasawada
- (20384) Hongsuhyim
- (20385) Horiuchi