860 Ursina

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860 Ursina
Discovery
Discovered by Max Wolf
Discovery site Heidelberg
Discovery date 22 January 1917
Designations
1917 BD
Orbital characteristics[1]
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)
Jupiter Tisserand parameter 3.279
Physical characteristics
Mean radius
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.[2]

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.[3]

References[edit]

  1. ^ "860 Ursina (1917 BD)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 4 May 2016. 
  2. ^ Schmadel, Lutz D. (2012), Dictionary of Minor Planet Names (6th ed.), Springer, p. 77, ISBN 3642297188. 
  3. ^ 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]