3099 Hergenrother
3099 Hergenrother, provisional designation 1940 GF, is an asteroid from the outer region of the asteroid belt, approximately 15 kilometers in diameter. It was discovered on 3 April 1940, by Finnish astronomer Yrjö Väisälä at Turku Observatory in Southwest Finland, and named after American astronomer Carl Hergenrother in 1996.
| Discovery | |
|---|---|
| Discovered by | Y. Väisälä |
| Discovery site | Turku Obs. |
| Discovery date | 3 April 1940 |
| Designations | |
MPC designation | (3099) Hergenrother |
Named after | Carl Hergenrother (American astronomer) |
Alternative designations | 1940 GF · 1969 EF1 1972 VV · 1979 KE 1980 NT · 1984 HB 1984 JG |
Minor planet category | main-belt · (outer) |
| Orbital characteristics | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 76.96 yr (28,111 days) |
| Aphelion | 3.4563 AU |
| Perihelion | 2.3048 AU |
Semi-major axis | 2.8805 AU |
| Eccentricity | 0.1999 |
Orbital period (sidereal) | 4.89 yr (1,786 days) |
Mean anomaly | 309.42° |
Mean motion | 0° 12m 5.76s / day |
| Inclination | 15.496° |
Longitude of ascending node | 31.100° |
| 148.52° | |
| Physical characteristics | |
| Dimensions | 14.732±0.110 km 29.21 km (calculated) |
Synodic rotation period | 24.266±0.007 h |
| 0.057 (assumed) 0.224±0.016 | |
| C | |
| 11.4 | |
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