54598 Bienor

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54598 Bienor
Discovery
Discovered byDES
Discovery siteCerro Tololo Obs.
Discovery date27 August 2000
Designations
MPC designation(54598) Bienor
2000 QC243
Centaur[1]
Orbital characteristics[1]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 1
Observation arc14789 days (40.49 yr)
Aphelion19.802 AU (2.9623 Tm)
Perihelion13.157 AU (1.9683 Tm)
16.480 AU (2.4654 Tm)
Eccentricity0.20164
66.90 yr (24435 d)
7.26 km/s
295.216°
0° 0m 53.039s / day
Inclination20.754°
337.895°
153.132°
Earth MOID12.1841 AU (1.82272 Tm)
Jupiter MOID7.8707 AU (1.17744 Tm)
TJupiter3.576
Physical characteristics
Dimensions207±30 km[2]
9.14 h (0.381 d)
9.14 h[1]
0.03–0.05[2]
Temperature~ 69 K
~ 20.1[3]
7.5[1]

54598 Bienor (/biˈnɔːr/ bee-EE-nor; from Greek: Βιάνωρ Bianor) is a centaur that grazes the orbit of Uranus. It is named after the mythological Centaur Bienor. Its closest approach to the Sun (perihelion) is 13.2 AU.[1] As of 2015, Bienor is currently 15.8 AU from the Sun[3] and will reach perihelion in January 2028.[1]

See also[edit]

References[edit]

  1. ^ a b c d e f "JPL Small-Body Database Browser: 54598 Bienor (2000 QC243)" (2011-10-19 last obs). Jet Propulsion Laboratory. Retrieved 12 April 2016.
  2. ^ a b Stansberry, Grundy, Brown, Spencer, Trilling, Cruikshank, Luc Margot Physical Properties of Kuiper Belt and Centaur Objects: Constraints from Spitzer Space Telescope (2007) Preprint arXiv
  3. ^ a b "AstDyS (54598) Bienor Ephemerides". Department of Mathematics, University of Pisa, Italy. Retrieved 2012-01-16.

External links[edit]