1516 Henry
1516 Henry, provisional designation 1938 BG, is a stony asteroid from the middle region of the asteroid belt, approximately 20 kilometers in diameter. It was discovered on 28 January 1938, by French astronomer André Patry at Nice Observatory in southeastern France. It is named for French astronomers and opticians, Paul and Prosper Henry.
| Discovery | |
|---|---|
| Discovered by | A. Patry |
| Discovery site | Nice Obs. |
| Discovery date | 28 January 1938 |
| Designations | |
MPC designation | (1516) Henry |
Named after | Paul and Prosper Henry (astronomers, opticians) |
Alternative designations | 1938 BG · 1938 DM |
Minor planet category | main-belt · (middle) |
| Orbital characteristics | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 79.00 yr (28,854 days) |
| Aphelion | 3.1087 AU |
| Perihelion | 2.1368 AU |
Semi-major axis | 2.6227 AU |
| Eccentricity | 0.1853 |
Orbital period (sidereal) | 4.25 yr (1,551 days) |
Mean anomaly | 216.91° |
Mean motion | 0° 13m 55.2s / day |
| Inclination | 8.7440° |
Longitude of ascending node | 125.84° |
| 94.457° | |
| Physical characteristics | |
| Dimensions | 19.19±4.31 km 19.92±1.7 km 19.98 km (derived) 26.163±0.138 km 26.442±0.150 km 27.70±8.84 km 28.55±0.36 km |
Synodic rotation period | 10 h 17.370±0.006 h |
| 0.039±0.007 0.0392±0.0045 0.04±0.03 0.042±0.001 0.0536±0.011 0.0701 (derived) 0.08±0.06 | |
| S | |
| 11.33±1.36 · 11.8 · 11.90 · 11.95 · 12.0 · 12.30 | |
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