54598 Bienor

54598 Bienor
Discovery
Discovered byDES
Discovery siteCerro Tololo Obs.
Discovery date27 August 2000
Designations
(54598) Bienor
Pronunciation/baɪˈiːnɔːr/[1]
Named after
Biēnor
2000 QC243
Centaur [2]
AdjectivesBienorian /baɪ.ɪˈnɔːriən/
Symbol (astrological)
Orbital characteristics [2]
Epoch 31 May 2020 (JD 2459000.5)
Uncertainty parameter 0
Observation arc24775 days (67.83 yr)
Aphelion19.715 AU (2.9493 Tm)
Perihelion13.172 AU (1.9705 Tm)
16.444 AU (2.4600 Tm)
Eccentricity0.19894
66.68 yr (24355 d)
7.26 km/s
318.473°
0° 0m 53.039s / day
Inclination20.745°
337.728°
153.374°
Earth MOID12.199 AU (1.8249 Tm)
Jupiter MOID7.873 AU (1.1778 Tm)
TJupiter3.575
Physical characteristics
187.5±15.5 km[3]
198 km[4]
207±30 km[5]
9.14 h (0.381 d)[2]
0.03–0.05[5]
0.05±0.019[3]
Temperature~ 69 K
BR[4]
B–V = 0.711±0.059[6]
V–R = 0.476±0.046[6]
~ 19.2[7]
7.5[2]

54598 Bienor /baɪˈiːnɔːr/ 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.[2] As of 2020, Bienor is 14.2 AU from the Sun[7] and will reach perihelion in January 2028.[2] It measured approximately 198 kilometers (120 miles) in diameter.[4]

  1. ^ Noah Webster (1884) A Practical Dictionary of the English Language
  2. ^ a b c d e f Cite error: The named reference jpldata was invoked but never defined (see the help page).
  3. ^ a b Cite error: The named reference Neowise was invoked but never defined (see the help page).
  4. ^ a b c Cite error: The named reference johnstonsarchive-TNOs was invoked but never defined (see the help page).
  5. ^ a b Cite error: The named reference Spitzer2007 was invoked but never defined (see the help page).
  6. ^ a b Cite error: The named reference Hainaut-2012 was invoked but never defined (see the help page).
  7. ^ a b Cite error: The named reference AstDyS was invoked but never defined (see the help page).