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52872 Okyrhoe

Centaur

Field	Value
minorplanet	yes
background	#C7FF8F
name	52872 Okyrhoe
symbol	[[File:Okyrhoe symbol (bold).svg	24px]] (astrological)
discoverer	Spacewatch
discovery_site	Kitt Peak Obs.
discovered	19 September 1998
mpc_name	(52872) Okyrhoe
pronounced
named_after	Ωκυρόη, Ωκυρρόη Ōkyroē, Ōkyrroē
alt_names
mp_category	centaur
epoch	13 January 2016 (JD 2457400.5)
semimajor	8.3478 AU
perihelion	5.7875 AU
aphelion	10.908 AU
eccentricity	0.30670
period	24.12 yr (8809.66 d)
inclination	15.665°
asc_node	173.03°
arg_peri	337.79°
mean_anomaly	118.92°
mean_diameter
rotation
abs_magnitude	10.8
albedo	0.03
mean_motion	/ day
orbit_ref
observation_arc	5393 days (14.77 yr)
uncertainty	0
jupiter_moid	0.468729 AU
tisserand	2.945
spectral_type	B–V

52872 Okyrhoe is a centaur orbiting in the outer Solar System between Jupiter and Saturn. It was discovered on 19 September 1998, by the Spacewatch survey at Kitt Peak Observatory in Arizona, United States, and named after Ocyrhoe from Greek mythology.

Orbit and classification

Centaurs have short dynamical lives due to strong interactions with the giant planets. Okyrhoe is estimated to have an orbital half-life of about 670 thousand years. Of objects listed as a centaur by the Minor Planet Center (MPC), JPL, and the Deep Ecliptic Survey (DES), Okyrhoe has the second smallest perihelion distance of a numbered centaur. Numbered centaur has a smaller perihelion distance.

Naming

It was named after Ocyrhoe, the daughter of Chiron and Chariclo from Greek mythology.

Physical characteristics

Sublimation

Okyrhoe passed perihelion in early 2008, and exhibited significant magnitude variations during March and April 2008. This could be a sign of sublimation of volatiles.

References

'Ocyroe' in Noah Webster (1884) ''A Practical Dictionary of the English Language''

Info: Wikipedia Source

This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.

centaurs-(small-solar-system-bodies) discoveries-by-the-spacewatch-project named-minor-planets astronomical-objects-discovered-in-1998

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