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]
References
[edit]- ^ 'Ursinus' in Noah Webster (1884) A Practical Dictionary of the English Language
- ^ "860 Ursina (1917 BD)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 4 May 2016.
- ^ Schmadel, Lutz D. (2012), Dictionary of Minor Planet Names (6th ed.), Springer, p. 77, ISBN 3642297188.
- ^ Warner, B. (March 2000), "Asteroid Photometry at the Palmer Divide Observatory", The Minor Planet Bulletin, 27: 4–6, Bibcode:2000MPBu...27....4W.
External links
[edit]- Lightcurve plot of 860 Ursina, Palmer Divide Observatory, B. D. Warner (1999)
- Asteroid Lightcurve Database (LCDB), query form (info Archived 16 December 2017 at the Wayback Machine)
- Dictionary of Minor Planet Names, Google books
- Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
- Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
- 860 Ursina at AstDyS-2, Asteroids—Dynamic Site
- 860 Ursina at the JPL Small-Body Database