54598 Bienor - Asteroid - astro.wikisort.org

astro.wikisort.org - Asteroid

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^[update], 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]

54598 Bienor
Discovery
Discovered by	DES
Discovery site	Cerro Tololo Obs.
Discovery date	27 August 2000
Designations
MPC designation	(54598) Bienor
Pronunciation	/baɪˈiːnɔːr/[1]
Named after	Biēnor
Alternative designations	2000 QC₂₄₃
Minor planet category	Centaur [2]
Adjectives	Bienorian /baɪ.ɪˈnɔːriən/
Orbital characteristics [2]
Epoch 31 May 2020 (JD 2459000.5)
Uncertainty parameter 0
Observation arc	24775 days (67.83 yr)
Aphelion	19.715 AU (2.9493 Tm)
Perihelion	13.172 AU (1.9705 Tm)
Semi-major axis	16.444 AU (2.4600 Tm)
Eccentricity	0.19894
Orbital period (sidereal)	66.68 yr (24355 d)
Average orbital speed	7.26 km/s
Mean anomaly	318.473°
Mean motion	0° 0^m 53.039^s / day
Inclination	20.745°
Longitude of ascending node	337.728°
Argument of perihelion	153.374°
Earth MOID	12.199 AU (1.8249 Tm)
Jupiter MOID	7.873 AU (1.1778 Tm)
T_Jupiter	3.575
Physical characteristics
Mean diameter	187.5±15.5 km[3] 198 km[4] 207±30 km[5]
Sidereal rotation period	9.14 h (0.381 d)[2]
Geometric albedo	0.03–0.05[5] 0.05±0.019[3]
Temperature	~ 69 K
Spectral type	BR[4] B–V = 0.711±0.059[6] V–R = 0.476±0.046[6]
Apparent magnitude	~ 19.2[7]
Absolute magnitude (H)	7.5[2]

References

Noah Webster (1884) A Practical Dictionary of the English Language
"JPL Small-Body Database Browser: 54598 Bienor (2000 QC243)" (2020-11-11 last obs). Jet Propulsion Laboratory. Retrieved 20 December 2020.
Bauer, J. M.; Grav, T.; Blauvelt, E.; Mainzer, A. K. (August 2013). "Centaurs and Scattered Disk Objects in the Thermal Infrared: Analysis of WISE/NEOWISE Observations". The Astrophysical Journal. 773 (1): 11. arXiv:1306.1862. Bibcode:2013ApJ...773...22B. doi:10.1088/0004-637X/773/1/22. S2CID 51139703.
Johnston, Wm. Robert (18 August 2020). "List of Known Trans-Neptunian Objects". Johnston's Archive. Retrieved 12 August 2021.
Stansberry, J.; Grundy, W.; Brown, M.; Cruikshank, D. (20 February 2007). "Physical Properties of Kuiper Belt and Centaur Objects: Constraints from Spitzer Space Telescope" (PDF). arXiv:astro-ph/0702538. {{cite journal}}: Cite journal requires |journal= (help)
Hainaut, O. R.; Boehnhardt, H.; Protopapa, S. (October 2012). "Colours of minor bodies in the outer solar system. II. A statistical analysis revisited". Astronomy and Astrophysics. 546: 20. arXiv:1209.1896. Bibcode:2012A&A...546A.115H. doi:10.1051/0004-6361/201219566. S2CID 54776793. Retrieved 26 September 2019.
"AstDyS (54598) Bienor Ephemerides". Department of Mathematics, University of Pisa, Italy. Retrieved 20 December 2020.

External links

54598 Bienor at AstDyS-2, Asteroids—Dynamic Site
- Ephemeris · Observation prediction · Orbital info · Proper elements · Observational info
54598 Bienor at the JPL Small-Body Database
- Close approach · Discovery · Ephemeris · Orbit diagram · Orbital elements · Physical parameters
1953 precovery image by the Palomar Observatory Sky Survey (Bienor is the object at the centre).

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54598 Bienor

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Consensus	Haumea Makemake Quaoar
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Possible (other)	1999 CD₁₅₈ 1999 DE₉ 2000 YW₁₃₄ 2002 XW₉₃ 2010 JO₁₇₉ 2010 VK₂₀₁ 2011 FW62 2011 GM₂₇ 2013 FZ₂₇ 2014 UM₃₃ 2015 AM₂₈₁ 2015 RR₂₄₅

Scattered disc

Consensus	Eris Gonggong
Possible	Gǃkúnǁʼhòmdímà Dziewanna 1996 GQ₂₁ 1996 TL₆₆ 2001 UR₁₆₃ 2002 TC₃₀₂ 2004 XA₁₉₂ 2005 QU₁₈₂ 2005 RM₄₃ 2006 QH181 2008 OG₁₉ 2010 KZ39 2010 RE₆₄ 2010 RF₄₃ 2010 TJ 2010 VZ₉₈ 2013 FY₂₇ 2014 AN₅₅ 2014 WK₅₀₉ 2018 AG37 2018 VG18 2021 DR15 2021 LL37

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Possible	2003 FY₁₂₈ 2003 QX₁₁₃ 2004 XR₁₉₀ 2005 TB₁₉₀ 2007 JJ₄₃ 2008 ST₂₉₁

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Consensus	Sedna
Possible	2012 VP113

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На других языках

[de] (54598) Bienor

(54598) Bienor ist ein Planetoid, der am 27. August 2000 im Rahmen des Deep Ecliptic Survey entdeckt wurde und zur Gruppe der Zentauren gehört.

- [en] 54598 Bienor

[ru] (54598) Биенор

(54598) Биенор (лат. Bienor) — крупный кентавр. Открыт 27 августа 2000 года Марком Буйе, С. Керном, Р. Миллисом и Л. Вассерманом в рамках проекта Deep Ecliptic Survey. 16 февраля 2003 года объект был включён в каталог малых планет под номером 54598[1]. 7 января 2004 года ему официально присвоено имя[2].

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See also

References

External links

На других языках

[de] (54598) Bienor

[ru] (54598) Биенор