(12542) Laver

Asteroid (12542) Laver
Properties of the orbit ( animation ) Epoch:  March 23, 2018 ( JD 2,458,200.5)
Orbit type	Main belt asteroid
Asteroid family	Hygiea family
Major semi-axis	3.1705  AU
eccentricity	0.1457
Perihelion - aphelion	2.7086 AU - 3.6324 AU
Inclination of the orbit plane	5.0563 °
Length of the ascending node	34.2644 °
Argument of the periapsis	291.9918 °
Sidereal period	5.65 a
Mean orbital velocity	16.72 km / s
Physical Properties
Absolute brightness	13.8 mag
history
Explorer	John Broughton
Date of discovery	August 10, 1998
Another name	1998 PN 1 , 1993 TF 23 , 1997 HQ 17
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.

(12542) Laver is an asteroid of the main belt , which on 10 August 1998 by the Australian amateur astronomer John Broughton by its private Reedy Creek Observatory ( IAU code 428) in Queensland was discovered. The asteroid had already been sighted in October 1993 under the provisional designation 1993 TF ₂₃ at the La Silla Observatory (IAU code 809).

(12542) Laver was named on May 9, 2001 after the Australian tennis player Rod Laver (* 1938), who was the only player in tennis history to win the Grand Slam twice: 1962 and 1969.

The celestial body belongs to the Hygiea family, a rather older group of asteroids, as is suspected, the largest member of which is the asteroid (10) Hygiea .

See also

• List of asteroids

Web links

• (12542) Laver in the database of the "Asteroids - Dynamic Site" (AstDyS-2, English).
• (12542) Laver in the Small-Body Database of the Jet Propulsion Laboratory .
• Discovery Circumstances of (12542) Laver according to the Minor Planet Center of the International Astronomical Union at the Harvard-Smithsonian Center for Astrophysics in Cambridge , Massachusetts (English)

Individual evidence

1. ↑ (12542) Laver at the IAU Minor Planet Center (English)