| Discovery | |
|---|---|
| Discovered by | Max Wolf |
| Discovery site | Heidelberg |
| Discovery date | 22 January 1917 |
| Designations | |
| (860) Ursina | |
| Pronunciation | /ɜːrˈsaɪnə/[1] |
| 1917 BD | |
| Orbital characteristics[2] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 113.24 yr (41362 days) |
| Aphelion | 3.0938 AU (462.83 Gm) |
| Perihelion | 2.5013 AU (374.19 Gm) |
| 2.7975 AU (418.50 Gm) | |
| Eccentricity | 0.10590 |
| 4.68 yr (1709.1 d) | |
| 247.967° | |
| 0° 12m 38.304s / day | |
| Inclination | 13.297° |
| 309.388° | |
| 21.338° | |
| Earth MOID | 1.49307 AU (223.360 Gm) |
| Jupiter MOID | 2.21886 AU (331.937 Gm) |
| TJupiter | 3.279 |
| Physical characteristics | |
| 14.66±0.8 km | |
| 9.386 h (0.3911 d) | |
| 0.1618±0.020 | |
| 10.26 | |
860 Ursina is a minor planet orbiting the Sun that was discovered in 1917 by German astronomer Max Wolf. The origin of the name is unknown.[3]
Photometric observations of this asteroid collected during 1999 show a rotation period of 9.386 ± 0.002 hours with a brightness variation of 0.22 magnitude.[4]
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