Global Information654 Zelinda information
| Discovery | |
|---|---|
| Discovered by | August Kopff |
| Discovery site | Heidelberg |
| Discovery date | 4 January 1908 |
| Designations | |
MPC designation | (654) Zelinda |
Alternative designations | 1908 BM |
| Orbital characteristics[1] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 108.29 yr (39553 d) |
| Aphelion | 2.8288 AU (423.18 Gm) |
| Perihelion | 1.7653 AU (264.09 Gm) |
Semi-major axis | 2.2970 AU (343.63 Gm) |
| Eccentricity | 0.23150 |
Orbital period (sidereal) | 3.48 yr (1271.6 d) |
Mean anomaly | 51.9052° |
Mean motion | 0° 16m 59.196s / day |
| Inclination | 18.125° |
Longitude of ascending node | 278.460° |
Argument of perihelion | 214.008° |
| Physical characteristics | |
Mean radius | 63.70±1.95 km[1] 63.915 ± 2.615 km[2] |
| Mass | (1.35 ± 0.14) × 1018 kg[2] |
Mean density | 1.23 ± 0.19 g/cm3[2] |
Synodic rotation period | 31.735 h (1.3223 d) |
Geometric albedo | 0.0425±0.003 |
Absolute magnitude (H) | 8.52 |
654 Zelinda is a minor planet orbiting the Sun that was discovered on 4 January 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.[3] 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.[4]
- ^ a b "654 Zelinda (1908 BM)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 7 May 2016.
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