(18747) Lexcen
Asteroid (18747) Lexcen |
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Properties of the orbit ( animation ) | |
Orbit type | Inner main belt asteroid |
Major semi-axis | 2.1689 AU |
eccentricity | 0.1208 |
Perihelion - aphelion | 1.9069 AU - 2.4308 AU |
Inclination of the orbit plane | 3.3154 ° |
Length of the ascending node | 306.3956 ° |
Argument of the periapsis | 297.0592 ° |
Time of passage of the perihelion | September 9, 2018 |
Sidereal period | 3.19 a |
Mean orbital velocity | 20.22 km / s |
Physical Properties | |
Absolute brightness | 14.5 mag |
history | |
Explorer | John Broughton |
Date of discovery | March 16, 1999 |
Another name | 1999 FN 21 , 1989 EN 6 |
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. |
(18747) Lexcen is a main inner belt asteroid discovered on March 16, 1999 by Australian amateur astronomer John Broughton at Reedy Creek Observatory ( IAU code 428). The observatory is located in the district of Reedy Creek the city of Gold Coast in Queensland . The asteroid had already been sighted on March 5, 1989 under the provisional designation 1989 EN 6 at the Karl Schwarzschild Observatory in the Thuringian Tautenburg Forest .
Mean solar distance ( major semi-axis ), eccentricity and inclination of the orbit plane of the asteroid roughly resemble the orbital data of the members of the Flora family, a large group of asteroids named after (8) Flora . Asteroids of this family move in a 4: 9 orbital resonance with the planet Mars around the sun . The group is also called the Ariadne family, after the asteroid (43) Ariadne .
(18747) Lexcen was named on July 5, 2001 after the Australian yacht constructor and designer Ben Lexcen (1936–1988).
Web links
- (18747) Lexcen in the database of the "Asteroids - Dynamic Site" (AstDyS-2, English).
- (18747) Lexcen in the Small-Body Database of the Jet Propulsion Laboratory of NASA at the California Institute of Technology (Caltech) in Pasadena , California (English)
- Discovery Circumstances of (18747) Lexcen according to the Minor Planet Center of the International Astronomical Union at the Harvard-Smithsonian Center for Astrophysics in Cambridge , Massachusetts (English)
Individual evidence
- ↑ (18747) Lexcen at the IAU Minor Planet Center (English)