1474 Beira
1474 Beira, provisional designation 1935 QY, is a bright carbonaceous asteroid and large Mars-crosser on an eccentric orbit from the asteroid belt, approximately 15 kilometers in diameter. It was discovered on 20 August 1935, by South African astronomer Cyril Jackson at the Union Observatory in Johannesburg. The asteroid was named after the port city of Beira in Mozambique.
| Discovery | |
|---|---|
| Discovered by | C. Jackson |
| Discovery site | Johannesburg Obs. |
| Discovery date | 20 August 1935 |
| Designations | |
MPC designation | (1474) Beira |
Named after | Beira (city in Mozambique) |
Alternative designations | 1935 QY · 1950 DQ |
Minor planet category | Mars-crosser |
| Orbital characteristics | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 81.06 yr (29,606 d) |
| Aphelion | 4.0740 AU |
| Perihelion | 1.3920 AU |
Semi-major axis | 2.7330 AU |
| Eccentricity | 0.4907 |
Orbital period (sidereal) | 4.52 yr (1,650 days) |
Mean anomaly | 19.609° |
Mean motion | 0° 13m 5.16s / day |
| Inclination | 26.683° |
Longitude of ascending node | 323.50° |
| 84.070° | |
| Physical characteristics | |
| Dimensions | 8.73 km (calculated) 14.9±1.5 km 15±2 km 15.46±1.55 km |
Synodic rotation period | 4.184±0.001 h 4.184±0.002 h |
| 0.06±0.01 0.064±0.013 0.07±0.01 0.20 (assumed) | |
| Tholen = FX SMASS = B B–V = 0.620 U–B = 0.245 | |
| 12.66 | |
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