(4558) Janesick Mars-crossing Asteroid
Discovered on 12 July 1988 by Maury, A., Mueller, J. E. at Palomar.
Where Janesick is today
Seen from above the solar system on 2026-10-14: Janesick is 2.65 au from the Sun and 3.61 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 4558 |
| Provisional designation | 1988 NF |
| Orbit class | Mars-crossing Asteroid |
| Diameter | 7.33 km (#7,282 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.290 |
| Rotation period | 173 hours |
| Spectral type | S |
| Absolute magnitude (H) | 12.79 |
| Orbital period | 3.26 years |
| Semi-major axis | 2.20 au |
| Perihelion – aphelion | 1.40 – 3.00 au |
| Eccentricity | 0.363 |
| Inclination | 22.2° |
| Closest distance between its orbit and Earth's (MOID) | 0.591 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 12 July 1988
← (4557) Mika · (4559) Strauss →