1237 Geneviève
1237 Geneviève (prov. designation: 1931 XB) is a background asteroid from the central region of the asteroid belt, approximately 38 kilometers (24 miles) in diameter. It was discovered on 2 December 1931, by French astronomer Guy Reiss at the Algerian Algiers Observatory in North Africa. The discoverer named it after his daughter Geneviève Reiss.
Shape model of Geneviève from its lightcurve | |
| Discovery | |
|---|---|
| Discovered by | G. Reiss |
| Discovery site | Algiers Obs. |
| Discovery date | 2 December 1931 |
| Designations | |
MPC designation | (1237) Geneviève |
Named after | Geneviève Reiss (daughter of discoverer) |
Alternative designations | 1931 XB · 1929 GA 1984 MM · A908 HA |
Minor planet category | |
| Orbital characteristics | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 109.09 yr (39,846 days) |
| Aphelion | 2.8142 AU |
| Perihelion | 2.4107 AU |
Semi-major axis | 2.6125 AU |
| Eccentricity | 0.0772 |
Orbital period (sidereal) | 4.22 yr (1,542 days) |
Mean anomaly | 169.28° |
Mean motion | 0° 14m 0.24s / day |
| Inclination | 9.7349° |
Longitude of ascending node | 57.868° |
| 305.88° | |
| Physical characteristics | |
| Dimensions | 30.85±6.64 km 37.26±11.83 km 39.74 km (derived) 39.81±1.1 km (IRAS:20) 40.67±0.61 km 42.987±4.138 km |
Synodic rotation period | 16.37±0.10 h 24.82±0.07 h |
| 0.0413±0.0070 0.0484 (derived) 0.057±0.002 0.0585±0.003 (IRAS:20) 0.06±0.04 0.07±0.14 | |
| S/C B–V = 0.610 U–B = 0.250 | |
| 10.7 · 10.8 · 10.84 · 10.91 | |
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