309 Fraternitas
| Discovery | |
|---|---|
| Discovered by | Johann Palisa |
| Discovery date | 6 April 1891 |
| Designations | |
Named after | fraternity |
| Main belt | |
| Orbital characteristics[1] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 125.03 yr (45667 d) |
| Aphelion | 2.97127 AU (444.496 Gm) |
| Perihelion | 2.35779 AU (352.720 Gm) |
| 2.66453 AU (398.608 Gm) | |
| Eccentricity | 0.11512 |
| 4.35 yr (1588.7 d) | |
Average orbital speed | 18.25 km/s |
| 190.308° | |
| 0° 13m 35.785s / day | |
| Inclination | 3.71999° |
| 356.574° | |
| 310.477° | |
| Earth MOID | 1.34471 AU (201.166 Gm) |
| Jupiter MOID | 2.24936 AU (336.499 Gm) |
| Jupiter Tisserand parameter | 3.372 |
| Physical characteristics | |
| Dimensions | 45.32±3.3 km |
| Mass | unknown |
Mean density | unknown |
Equatorial surface gravity | unknown |
Equatorial escape velocity | unknown |
| 22.398 h (0.9333 d) | |
| 0.0595±0.010 | |
| Temperature | unknown |
| unknown | |
| 10.7 | |
|
| |
309 Fraternitas is a typical Main belt asteroid.[2] It was discovered by Johann Palisa on April 6, 1891 in Vienna.
References
- ↑ "309 Fraternitas". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 11 May 2016.
- ↑ "Osculating elements from astorb-database for 309 Fraternitas". The Centaur Research Project. Retrieved 5 April 2015.
External links
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