675 Ludmilla
675 Ludmilla is a minor planet orbiting the Sun. It was named after Mikhail Glinka's opera Ruslan and Lyudmila.
A three-dimensional model of 675 Ludmilla based on its light curve | |
| Discovery | |
|---|---|
| Discovered by | Joel Hastings Metcalf |
| Discovery site | Taunton, Massachusetts |
| Discovery date | 30 August 1908 |
| Designations | |
MPC designation | (675) Ludmilla |
Alternative designations | 1908 DU |
| Orbital characteristics | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 98.67 yr (36039 d) |
| Aphelion | 3.3308 AU (498.28 Gm) |
| Perihelion | 2.2150 AU (331.36 Gm) |
Semi-major axis | 2.7729 AU (414.82 Gm) |
| Eccentricity | 0.20120 |
Orbital period (sidereal) | 4.62 yr (1686.5 d) |
Mean anomaly | 98.9547° |
Mean motion | 0° 12m 48.456s / day |
| Inclination | 9.7796° |
Longitude of ascending node | 263.200° |
| 152.391° | |
| Physical characteristics | |
Mean radius | 76 km 67.66±0.94 km |
| Mass | (6.47±3.14)×1017 kg |
Synodic rotation period | 7.717 h (0.3215 d) |
| 7.91 | |
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