(59804) Dickjoyce Main-belt Asteroid
Discovered on 5 September 1999 by C. W. Juels at Fountain Hills.
Richard R. Joyce (b. 1944) is an astronomer at the National Optical Astronomy Observatory who studies late-type stars and mass loss using infrared spectroscopy. He is also an expert in infrared instrumentation development.Naming citation (20050919/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Dickjoyce is today
Seen from above the solar system on 2026-10-14: Dickjoyce is 3.36 au from the Sun and 3.99 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 59804 |
| Provisional designation | 1999 RJ1 |
| Orbit class | Main-belt Asteroid |
| Diameter | 14.3 km (#3,318 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0550 |
| Absolute magnitude (H) | 13.29 |
| Orbital period | 5.72 years |
| Semi-major axis | 3.20 au |
| Perihelion – aphelion | 3.03 – 3.36 au |
| Eccentricity | 0.0514 |
| Inclination | 9.38° |
| Closest distance between its orbit and Earth's (MOID) | 2.06 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
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