(18462) Riccò
|
Asteroid (18462) Riccò |
|
|---|---|
| Properties of the orbit ( animation ) | |
| Orbit type | Main outer belt asteroid |
| Asteroid family | Koronis family |
| Major semi-axis | 2.9056 AU |
| eccentricity | 0.8735 |
| Perihelion - aphelion | 2.6518 AU - 3.1595 AU |
| Inclination of the orbit plane | 2.3081 ° |
| Length of the ascending node | 162.5965 ° |
| Argument of the periapsis | 201.8178 ° |
| Time of passage of the perihelion | October 9, 2020 |
| Sidereal period | 4.95 a |
| Mean orbital velocity | 17.44 km / s |
| Physical Properties | |
| Medium diameter | 3.906 (± 0.208) km |
| Albedo | 0.153 (± 0.012) |
| Absolute brightness | 14.2 mag |
| history | |
| Explorer | San Vittore Observatory |
| Date of discovery | August 26, 1995 |
| Another name | 1995 QS 2 , 1999 JV 13 , 2000 QK 46 |
| 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. | |
(18462) Riccò is an asteroid of the main outer belt discovered on August 26, 1995 at the San Vittore Observatory ( IAU code 552) in Bologna .
The asteroid is a member of the Koronis family, a group of asteroids named after (158) Koronis . The timeless (non- osculating ) orbital elements of (18462) Riccò are almost identical to those of the larger asteroid (8754) Leucorodia and the smaller asteroids (161628) 2005 YW 29 , (204518) 2005 EM 25 , (240713) 2005 GK 110 and ( 463986) 2014 WN 48 . The size comparison is based solely on the absolute brightness , since the diameter of all the celestial bodies mentioned is not known.
The mean diameter of the asteroid was calculated to be 3.906 (± 0.208) km and the albedo to be 0.153 (± 0.012).
(18462) Riccò was named on April 27, 2002 after the Italian astronomer Annibale Riccò (1844–1919). The name of Annibale Riccò has also been borne by the moon crater on the northern side of the moon Ricco since 1970 .
Web links
- (18462) Riccò in the database of the "Asteroids - Dynamic Site" (AstDyS-2, English).
- (18462) Riccò in the Small-Body Database of the Jet Propulsion Laboratory (English).
- Discovery Circumstances by (18462) Riccò according to the Minor Planet Center of the International Astronomical Union at the Harvard-Smithsonian Center for Astrophysics in Cambridge , Massachusetts (English)
Individual evidence
- ↑ The family status of the asteroids in the AstDyS-2 database (English, HTML; 51.4 MB)
- ↑ The Ricco lunar crater in the IAU's Gazetteer of Planetary Nomenclature (WGPSN) / USGS (English)