Evelyn (minor planet designation: 503 Evelyn) is a main belt asteroid discovered by Raymond Smith Dugan on 19 January 1903. The asteroid was named after Evelyn Smith Dugan, mother of the discoverer.
| Discovery | |
|---|---|
| Discovered by | Raymond Smith Dugan |
| Discovery site | Heidelberg |
| Discovery date | 19 January 1903 |
| Designations | |
MPC designation | (503) Evelyn |
Alternative designations | 1903 LF |
| Orbital characteristics[1] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 113.24 yr (41362 d) |
| Aphelion | 3.2031 AU (479.18 Gm) |
| Perihelion | 2.2418 AU (335.37 Gm) |
Semi-major axis | 2.7225 AU (407.28 Gm) |
| Eccentricity | 0.17655 |
Orbital period (sidereal) | 4.49 yr (1640.7 d) |
Mean anomaly | 98.1577° |
Mean motion | 0° 13m 9.876s / day |
| Inclination | 5.0103° |
Longitude of ascending node | 68.903° |
Argument of perihelion | 42.058° |
| Physical characteristics | |
| Dimensions | 87.58 ± 3.58 km[2] 81.68±4.9 km[1] |
| Mass | (2.85 ± 0.34) × 1018 kg[2] |
Mean density | 8.10 ± 1.38 g/cm3[2] |
Synodic rotation period | 38.728 h (1.6137 d) |
Geometric albedo | 0.0585±0.008 |
Absolute magnitude (H) | 9.3 |
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