(17439) Juliesan Main-belt Asteroid
Discovered on 7 October 1989 by E. W. Elst at La Silla.
Julie Nelissen (1985-2017) was a dedicated nurse working at the Department of Psychiatry at the Stuivenberg clinic in the Antwerp region.Naming citation (MPC batch dated 2017-11-04), IAU / Minor Planet Center, via NASA/JPL
Where Juliesan is today
Seen from above the solar system on 2026-10-14: Juliesan is 3.09 au from the Sun and 4.03 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 17439 |
| Provisional designation | 1989 TR3 |
| Orbit class | Main-belt Asteroid |
| Diameter | 8.59 km (#6,074 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0870 |
| Absolute magnitude (H) | 14.08 |
| Orbital period | 5.63 years |
| Semi-major axis | 3.16 au |
| Perihelion – aphelion | 3.06 – 3.27 au |
| Eccentricity | 0.0318 |
| Inclination | 9.51° |
| Closest distance between its orbit and Earth's (MOID) | 2.07 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Julie
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- (7909) Ziffer
- (11274) Castillo-Rogez
- (12880) Juliegrady
- (14574) Payette
- (16944) Wangler
- (20438) Julievermersch
- (20776) Juliekrugler
- (23674) Juliebaker
- (24410) Juliewalker
- (26435) Juliebrisset
- (33498) Juliesmith
All asteroids named after someone called Julie
Also discovered on 7 October 1989
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- (8837) London
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- (11871) Norge
- (12261) Ledouanier
- (13032) Tarn
- (13033) Gardon
- (21029) Adorno