| Minorplanet | yes |
|---|---|
| Background |
|
| Mpc name | (649) Josefa |
| Alt names | 1907 AF |
| Discoverer | August Kopff |
| Discovered | 11 September 1907 |
| Discovery site | Heidelberg |
| Epoch | 31 July 2016 (JD 2457600.5) |
| Eccentricity | 0.27852 |
| Semimajor | 2.5463 AU (380.92 Gm) |
| Perihelion | 1.8371 AU (274.83 Gm) |
| Aphelion | 3.2555 AU (487.02 Gm) |
| Period | 4.06 yr (1484.1 d) |
| Inclination | 12.715° |
| Asc node | 357.035° |
| Arg peri | 349.562° |
| Mean anomaly | 273.84° |
| Mean motion | / day |
| Observation arc | 108.60 yr (39665 d) |
| Uncertainty | 0 |
| Abs magnitude | 12.7 |
| Rotation | 10.481 h |
649 Josefa is a minor planet, specifically an asteroid, orbiting primarily in the asteroid belt. Photometric observations provide a rotation period of 10.481 ± 0.001 hours with a brightness variation of 0.33 ± 0.04 in magnitude.[1]
References
- ^ Pilcher, Frederick (April 2010), "Rotation Period Determinations for 81 Terpsichore, 419 Aurelia 452 Hamiltonia, 610 Valeska, 649 Josefa, and 652 Jubilatrix", Minor Planet Bulletin, Bibcode:2010MPBu...37...45P