Nenetta (minor planet designation: 289 Nenetta) is a typical A-type asteroid. It was discovered by Auguste Charlois on 10 March 1890 in Nice, France.
Discovery | |
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Discovered by | Auguste Charlois |
Discovery date | 10 March 1890 |
Designations | |
MPC designation | (289) Nenetta |
Minor planet category | Main belt |
Orbital characteristics[1] | |
Epoch 31 July 2016 (JD 2457600.5) | |
Uncertainty parameter 0 | |
Observation arc | 113.69 yr (41526 d) |
Aphelion | 3.46101 AU (517.760 Gm) |
Perihelion | 2.28661 AU (342.072 Gm) |
Semi-major axis | 2.87381 AU (429.916 Gm) |
Eccentricity | 0.20433 |
Orbital period (sidereal) | 4.87 yr (1779.4 d) |
Mean anomaly | 104.307° |
Mean motion | 0° 12m 8.316s / day |
Inclination | 6.69535° |
Longitude of ascending node | 182.114° |
Argument of perihelion | 189.219° |
Physical characteristics | |
Dimensions | 33.73±2.6 km |
Synodic rotation period | 6.902 h (0.2876 d) |
Geometric albedo | 0.2438±0.042 |
Absolute magnitude (H) | 9.51 |
The spectrum of 289 Nenetta reveals the strong presence of the mineral Olivine, a relative rarity in the asteroid belt.[2]
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