442 Eichsfeldia
| Discovery | |
|---|---|
| Discovered by |
M. Wolf, A. Schwassmann |
| Discovery date | February 15, 1899 |
| Designations | |
Named after | Eichsfeld |
| 1899 EE | |
| Main belt | |
| Orbital characteristics[1] | |
| Epoch 30 January 2005 (JD 2453400.5) | |
| Aphelion | 375.882 Gm (2.513 AU) |
| Perihelion | 325.835 Gm (2.178 AU) |
| 350.858 Gm (2.345 AU) | |
| Eccentricity | 0.071 |
| 1311.898 d (3.59 a) | |
Average orbital speed | 19.45 km/s |
| 113.664° | |
| Inclination | 6.062° |
| 135.045° | |
| 84.797° | |
| Physical characteristics | |
| Dimensions | 65.58 ± 1.70[2] km |
| Mass | (1.95 ± 0.20) × 1017[2] kg |
Mean density | 1.32 ± 0.16[2] g/cm3 |
Spectral type | C |
| 9.94[3] | |
|
| |
442 Eichsfeldia is a large main belt asteroid that was discovered by German astronomers Max Wolf and A. Schwassmann on February 15, 1899 in Heidelberg. It is classified as a C-type asteroid and is probably composed of primitive carbonaceous material.
Although Eichsfeldia has an orbit similar to the Vesta family asteroids, it was found to be an unrelated interloper on the basis of its non-matching spectral type.
References
- ↑ Yeomans, Donald K., "442 Eichsfeldia", JPL Small-Body Database Browser (NASA Jet Propulsion Laboratory), retrieved 2013-03-25.
- ↑ 2.0 2.1 2.2 Carry, B. (December 2012), "Density of asteroids", Planetary and Space Science 73: 98–118, arXiv:1203.4336, Bibcode:2012P&SS...73...98C, doi:10.1016/j.pss.2012.03.009. See Table 1.
- ↑ Warner, Brian D. (December 2007), "Initial Results of a Dedicated H-G Project", Bulletin of the Minor Planets Section of the Association of Lunar and Planetary Observers 34: 113–119, Bibcode:2007MPBu...34..113W.
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