860 Ursina

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860 Ursina
Discovery
Discovered by Max Wolf
Discovery site Heidelberg
Discovery date22 January 1917
Designations
(860) Ursina
Pronunciation /ɜːrˈsnə/ [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
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. [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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    References

    1. 'Ursinus' in Noah Webster (1884) A Practical Dictionary of the English Language
    2. "860 Ursina (1917 BD)". JPL Small-Body Database . NASA/Jet Propulsion Laboratory . Retrieved 4 May 2016.
    3. Schmadel, Lutz D. (2012), Dictionary of Minor Planet Names (6th ed.), Springer, p. 77, ISBN   3642297188.
    4. Warner, B. (March 2000), "Asteroid Photometry at the Palmer Divide Observatory", The Minor Planet Bulletin, 27: 4–6, Bibcode:2000MPBu...27....4W.