2175 Andrea Doria
2175 Andrea Doria, provisional designation 1977 TY, is a stony Florian asteroid from the inner regions of the asteroid belt, approximately 4 kilometers in diameter.
| Discovery | |
|---|---|
| Discovered by | P. Wild |
| Discovery site | Zimmerwald Obs. |
| Discovery date | 12 October 1977 |
| Designations | |
MPC designation | (2175) Andrea Doria |
Named after | Andrea Doria (16th-century admiral) |
Alternative designations | 1977 TY · 1964 VY1 1967 RS · 1967 TE |
Minor planet category | main-belt · Flora |
| Orbital characteristics | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 66.18 yr (24,171 days) |
| Aphelion | 2.6751 AU |
| Perihelion | 1.7560 AU |
Semi-major axis | 2.2155 AU |
| Eccentricity | 0.2074 |
Orbital period (sidereal) | 3.30 yr (1,205 days) |
Mean anomaly | 44.452° |
Mean motion | 0° 17m 56.04s / day |
| Inclination | 3.7056° |
Longitude of ascending node | 222.09° |
| 143.68° | |
| Physical characteristics | |
| Dimensions | 3.86±0.14 km 3.922±0.042 4.013±0.021 km 4.50 km (calculated) |
Synodic rotation period | 4.880±0.001 h |
| 0.24 (assumed) 0.392±0.067 0.3997±0.0568 0.417±0.057 | |
| S | |
| 13.6 · 13.70 · 13.9 · 14.28±0.29 | |
It was discovered on 12 October 1977, by Swiss astronomer Paul Wild at Zimmerwald Observatory near Bern, Switzerland, and named after 16th-century Genoese admiral Andrea Doria.
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