(385185) 1993 RO
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Asteroid (385185) 1993 RO |
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|---|---|
| Properties of the orbit ( animation ) | |
| Orbit type | KBO : Plutino |
| Major semi-axis | 39.2468 AU |
| eccentricity | 0.1970 |
| Perihelion - aphelion | 31.5149 AU - 46.9787 AU |
| Inclination of the orbit plane | 3.7178 ° |
| Length of the ascending node | 170.3729 ° |
| Argument of the periapsis | 188.9860 ° |
| Sidereal period | 245.88 a |
| Mean orbital velocity | 4.72 km / s |
| Physical Properties | |
| Medium diameter | ~ 92 km |
| Absolute brightness | 8.4 mag |
| history | |
| Explorer |
David C. Jewitt Jane Luu |
| Date of discovery | September 14, 1993 |
| Source: Unless otherwise stated, the data comes from JPL Small-Body Database Browser . The affiliation to an asteroid family is automatically determined from the AstDyS-2 database . Please also note the note on asteroid items. | |
(385185) 1993 RO is a Trans-Neptunian object of the Plutino class. It was the first Plutino to be discovered after Pluto himself. It was discovered on September 14, 1993 by David C. Jewitt and Jane Luu at the Mauna Kea Observatory using a 2.2 meter telescope. One and two days later, the objects 1993 RP and 1993 SB were discovered. The diameter of 1993 RO is given in some sources as about 90 km, in others as about 140 km.