949 Hel
| Discovery | |
|---|---|
| Discovered by | Max Wolf |
| Discovery site | Heidelberg |
| Discovery date | March 11, 1921 |
| Designations | |
| 1921 JK | |
| Orbital characteristics | |
| Epoch August 18, 2005 (JDCT 2453600.5) | |
| Aphelion | 3.594 AU |
| Perihelion | 2.397 AU |
| 2.996 AU | |
| Eccentricity | 0.200 |
| 5.185 a | |
| 55.306° | |
| Inclination | 10.696° |
| 321.593° | |
| 248.490° | |
| Physical characteristics | |
| Dimensions | 63.56 ± 4.01[1] km |
| Mass | (1.73 ± 0.62) × 1018[1] kg |
Mean density | 12.86 ± 5.19[1] g/cm3 |
Spectral type | Xk[1] |
|
| |
949 Hel is a minor planet orbiting the Sun.
References
- ↑ 1.0 1.1 1.2 1.3 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.
External links
| ||||||
| ||||||||||||||||||||||||||||