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7092 Cadmus

Eccentric near-Earth asteroid

Field	Value
minorplanet	yes
name	7092 Cadmus
background	#FFC2E0
discovery_ref
discovered	4 June 1992
discoverer	C. Shoemaker
E. Shoemaker
discovery_site	Palomar Obs.
mpc_name	(7092) Cadmus
alt_names	1992 LC
pronounced
adjective	Cadmean
named_after	Cadmus
(Greek mythology)
mp_category	NEOApollo
Alinda group
orbit_ref
epoch	4 September 2017 (JD 2458000.5)
uncertainty	0
observation_arc	36.17 yr (13,211 days)
aphelion	4.3037 AU
perihelion	0.7654 AU
semimajor	2.5345 AU
eccentricity	0.6980
period	4.04 yr (1,474 days)
mean_anomaly	117.29°
inclination	17.811°
asc_node	57.700°
arg_peri	93.833°
moid	0.0972 AU37.9 LD
mean_diameter	km (est. at 0.25)
abs_magnitude	15.1

E. Shoemaker (Greek mythology) Alinda group

7092 Cadmus, provisional designation , is a highly eccentric asteroid and near-Earth object of the Apollo group, approximately 3 kilometers in diameter. It was discovered on 4 June 1992, by American astronomer couple Carolyn and Eugene Shoemaker at Palomar Observatory in California, United States. The asteroid was named after Cadmus from Greek mythology.

Orbit and classification

Cadmus orbits the Sun in the central main-belt at a distance of 0.8–4.3 AU once every 4.04 years (1,474 days). Its orbit has an eccentricity of 0.70 and an inclination of 18° with respect to the ecliptic. It is a member of the Alinda group of asteroids with a 3:1 resonance with Jupiter that has excited the eccentricity of the orbit over the eons.

Due to a precovery obtained at the Australian Siding Spring Observatory, the body's observation arc already begins in 1980.

It has an Earth minimum orbit intersection distance of 0.0972 AU, which corresponds to 37.9 lunar distances. On 7 December 2056, it will pass at 0.241 AU from Earth.

Physical characteristics

As of 2016, the asteroid's effective size, its composition and albedo, as well as its rotation period and shape remain unknown. Based on an absolute magnitude of 15.1, it measures between 3 and 6 kilometers in diameter, assuming an albedo in the range of 0.05 to 0.25. Since near-Earth asteroids are often of a silicaceous rather than of a carbonaceous composition, with higher albedos, typically above 0.20, the asteroid's diameter might be on the lower end of NASA's published conversion table, as the higher the body's reflectivity (albedo), the smaller its diameter, at a constant absolute magnitude (brightness).

Naming

This minor planet is named for Cadmus, the Phoenician prince, first king of Theben, and one of the greatest heroes before the days of Heracles. The minor planets 1873 Agenor, 52 Europa, 5731 Zeus, 881 Athene, 40 Harmonia and 1388 Aphrodite are named after related figures from Greek mythology.

References

"Cadmus". [[Oxford University Press]].
{{OED. Cadmean

Info: Wikipedia Source

This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.

alinda-asteroids apollo-asteroids discoveries-by-carolyn-s.-shoemaker discoveries-by-eugene-merle-shoemaker named-minor-planets astronomical-objects-discovered-in-1992

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