Global Information1576 Fabiola information
 Shape model of Fabiola from its lightcurve | |
| Discovery[1] | |
|---|---|
| Discovered by | S. Arend |
| Discovery site | Uccle Obs. |
| Discovery date | 30 September 1948 |
| Designations | |
MPC designation | (1576) Fabiola |
Named after | Queen Fabiola of Belgium[2] |
Alternative designations | 1948 SA · 1931 RV 1931 TQ2 · 1933 BZ 1939 CS · 1943 YA 1948 TU1 · 1948 UJ 1950 DZ |
Minor planet category | main-belt · (outer) Themis[3][4] |
| Orbital characteristics[1] | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 85.66 yr (31,288 days) |
| Aphelion | 3.6746 AU |
| Perihelion | 2.6257 AU |
Semi-major axis | 3.1501 AU |
| Eccentricity | 0.1665 |
Orbital period (sidereal) | 5.59 yr (2,042 days) |
Mean anomaly | 130.30° |
Mean motion | 0° 10m 34.68s / day |
| Inclination | 0.9514° |
Longitude of ascending node | 166.62° |
Argument of perihelion | 244.20° |
| Physical characteristics | |
| Dimensions | 21.33±8.66 km[5] 23.49±0.43 km[6] 26.22±1.79 km[7] 27.25±1.7 km[8] 27.357±0.240 km[9] 28.6±2.9 km[10] 30±3 km[11] 30.150±0.400 km[12] |
Synodic rotation period | 6.7 h[13] |
Geometric albedo | 0.0746±0.0139[12] 0.08±0.02[11][10] 0.0913±0.013[8] 0.100±0.015[7] 0.11±0.09[5] 0.115±0.015[9] 0.123±0.018[6] |
Spectral type | Tholen = BU[1][3] B–V = 0.632[1] U–B = 0.405[1] |
Absolute magnitude (H) | 11.04[1][3][6][7][8][10][11][12] · 11.13[5] · 11.17±0.17[14] |
1576 Fabiola, provisional designation 1948 SA, is a Themistian asteroid from the outer regions of the asteroid belt, approximately 27 kilometers in diameter. It was discovered on 30 September 1948, by Belgian astronomer Sylvain Arend at the Royal Observatory of Belgium in Uccle.[15] The asteroid was named after Queen Fabiola of Belgium.[2]
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