1199 Geldonia
1199 Geldonia (provisional designation 1931 RF) is an Eoan asteroid from the outer regions of the asteroid belt, approximately 32 kilometers in diameter. It was discovered on 14 September 1931, by Belgian astronomer Eugène Delporte at the Royal Observatory of Belgium in Uccle. The asteroid was named after the Belgian town of Jodoigne.
| Discovery | |
|---|---|
| Discovered by | E. Delporte |
| Discovery site | Uccle Obs. |
| Discovery date | 14 September 1931 |
| Designations | |
MPC designation | (1199) Geldonia |
| Pronunciation | /ɡɛlˈdoʊniə/ |
Named after | Jodoigne (Belgian city) |
Alternative designations | 1931 RF · 1930 MB 1946 OH · 1958 WC A921 TF |
Minor planet category | main-belt · (outer) Eos |
| Orbital characteristics | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 95.48 yr (34,873 days) |
| Aphelion | 3.1016 AU |
| Perihelion | 2.9337 AU |
Semi-major axis | 3.0177 AU |
| Eccentricity | 0.0278 |
Orbital period (sidereal) | 5.24 yr (1,915 days) |
Mean anomaly | 324.45° |
Mean motion | 0° 11m 16.8s / day |
| Inclination | 8.7917° |
Longitude of ascending node | 235.63° |
| 291.33° | |
| Physical characteristics | |
| Dimensions | 30.395±0.243 km 31.25±3.0 km 32.858±0.315 km 35.88±0.50 km 36.08±0.58 km |
Synodic rotation period | 28.3±0.2 h |
| 0.098±0.004 0.098±0.010 0.1182±0.0108 0.1299±0.029 | |
| Tholen = CGTP: B–V = 0.760 U–B = 0.330 | |
| 10.36 | |
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