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(385185) 1993 RO is a plutino. It was the first plutino discovered after Pluto itself, with 1993 RP and (15788) 1993 SB a day and two days later, respectively. The discovery was made in 1993 at the Mauna Kea Observatory with a 2.2-meter telescope. Very little is known about (385185) 1993 RO. Even the diameter estimate of ~90 km is based on the assumed albedo of 0.09.[2]

This article needs additional citations for verification. (October 2013)

(385185) 1993 RO

Discovery
Discovered by	David C. Jewitt Jane Luu
Discovery date	14 September 1993
Designations
Alternative designations	1993 RO
Minor planet category	Plutino (TNO)
Orbital characteristics[1]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 4
Observation arc	6997 days (19.16 yr)
Earliest precovery date	10 August 1994
Aphelion	46.776 AU (6.9976 Tm)
Perihelion	31.492 AU (4.7111 Tm)
Semi-major axis	39.134 AU (5.8544 Tm)
Eccentricity	0.19528
Orbital period (sidereal)	244.81 yr (89418.1 d)
Mean anomaly	26.984°
Mean motion	0.0040260°/day
Inclination	3.7196°
Longitude of ascending node	170.4038°
Argument of perihelion	188.41°
Earth MOID	30.4867 AU (4.56075 Tm)
Jupiter MOID	26.5264 AU (3.96829 Tm)
Physical characteristics
Dimensions	~92 km[2]
Geometric albedo	0.09 (assumed)
Absolute magnitude (H)	8.4

KBO's found in 1993 include: (15788) 1993 SB, (15789) 1993 SC, (181708) 1993 FW, and (385185) 1993 RO.

See also

• List of trans-Neptunian objects
• Kuiper belt

References

External links

• IAUC 5865: 1993 RO
• Further MPEC
• Further MPEC
• List of known TNOs, including size estimates
• IAU minor planet lists
• (385185) 1993 RO at the JPL Small-Body Database
  • Close approach · Discovery · Ephemeris · Orbit diagram · Orbital elements · Physical parameters

На других языках

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[de] (385185) 1993 RO

(385185) 1993 RO ist ein Transneptunisches Objekt der Plutino-Klasse. Es war der erste Plutino, der nach Pluto selbst entdeckt wurde. Es wurde am 14. September 1993 von David C. Jewitt und Jane Luu am Mauna-Kea-Observatorium mit einem 2,2-Meter-Teleskop entdeckt. Ein beziehungsweise zwei Tage später wurden die Objekte 1993 RP und 1993 SB entdeckt. Der Durchmesser von 1993 RO wird in einigen Quellen mit etwa 90 km, in anderen mit etwa 140 km angegeben.

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- [en] (385185) 1993 RO

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[ru] (385185) 1993 RO

(385185) 1993 RO — транснептуновый объект класса плутино.

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