(18747) Lexcen

Asteroid (18747) Lexcen
Properties of the orbit ( animation ) Epoch: March 23, 2018 ( JD 2,458,200.5)
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).

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