57424 Caelumnoctu

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57424 Caelumnoctu
Orbit of 57424 Caelumnoctu
Discovery and designation
Discovered by Lincoln Laboratory Near-Earth Asteroid Research Team
Discovery site Socorro
Discovery date September 16, 2001
MPC designation 57424
Alternative names 2001 SP22, 1982 BV4
Orbital characteristics
Epoch January 4, 2010
Aphelion 3.3169684 AU
Perihelion 2.7576258 AU
Semi-major axis 3.0383512 AU
Eccentricity 0.0920790
Orbital period 5.3 yr
Mean anomaly 171.65151°
Inclination 9.66971°
Longitude of ascending node 353.52462°
Argument of perihelion 47.55992°
Proper orbital elements
Proper mean motion 0.1861 deg / yr
Proper orbital period 1934.44385 yr
(706555.615 d)
Physical characteristics
Absolute magnitude (H) 13.8

57424 Caelumnoctu (2001 SP22) is a Main-belt asteroid discovered on September 16, 2001 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro, New Mexico.

It was named Caelumnoctu (Latin for The Sky at Night) in honour of the BBC television program which celebrated its 50th anniversary in 2007. The number 57424 refers to the date of the first broadcast, 24 April 1957.*[1]

External links[edit]