618 Elfriede
618 Elfriede is a minor planet orbiting the Sun. On July 24, 2013, it occulted the magnitude 12.8 star 2UCAC 23949304, over parts of Mexico and southwestern United States.
| Discovery | |
|---|---|
| Discovered by | K. Lohnert |
| Discovery site | Heidelberg |
| Discovery date | 17 October 1906 |
| Designations | |
MPC designation | (618) Elfriede |
| Pronunciation | German: [ɛlˈfʁiːdə] |
Alternative designations | 1906 VZ |
| Orbital characteristics | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 109.50 yr (39996 d) |
| Aphelion | 3.4223 AU (511.97 Gm) |
| Perihelion | 2.9551 AU (442.08 Gm) |
Semi-major axis | 3.1887 AU (477.02 Gm) |
| Eccentricity | 0.073271 |
Orbital period (sidereal) | 5.69 yr (2079.8 d) |
Mean anomaly | 142.019° |
Mean motion | 0° 10m 23.124s / day |
| Inclination | 17.037° |
Longitude of ascending node | 111.070° |
| 228.138° | |
| Physical characteristics | |
Mean radius | 60.145±2.5 km |
Synodic rotation period | 14.795 h (0.6165 d) |
| 0.0606±0.005 | |
| 8.3 | |
Photometric observations of this asteroid collected during 2008 show a rotation period of 14.85 ± 0.01 hours with a brightness variation of 0.12 ± 0.02 magnitude.
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.