654 Zelinda
| Discovery | |
|---|---|
| Discovered by | August Kopff |
| Discovery site | Heidelberg |
| Discovery date | January 4, 1908 |
| Designations | |
| 1908 BM | |
| Orbital characteristics | |
| Epoch October 10, 1999 (JDCT 2451461.5) | |
| Aphelion | 2.829 AU |
| Perihelion | 1.765 AU |
| 2.297 AU | |
| Eccentricity | 0.232 |
| 3.481 a | |
| 113.367° | |
| Inclination | 18.118° |
| 278.612° | |
| 214.078° | |
| Physical characteristics | |
| Dimensions | 127.83 ± 5.23[1] km |
| Mass | (1.35 ± 0.14) × 1018[1] kg |
|
Mean density
|
1.23 ± 0.19[1] g/cm3 |
654 Zelinda is a minor planet orbiting the Sun that was discovered on January 4, 1908 by German astronomer August Kopff. On favorable oppositions, it can be as bright as magnitude 10.0, as on January 30, 2016.
In 1988, this object was detected with radar from the Arecibo Observatory at a distance of 0.89 AU. The measured radar cross-section was 2,200 km2.[2] Measurements made using the adaptive optics system at the W. M. Keck Observatory give a diameter estimate of 131 km. This is 13% smaller than the diameter estimated from the IRAS observatory measurements. It is roughly triangular in shape.[3]
References
External links
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