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3040 Kozai

Asteroid

Field	Value
minorplanet	yes
name	3040 Kozai
background	#FA8072
discovery_ref
discovered	23 January 1979
discoverer	W. Liller
discovery_site	Cerro Tololo Obs.
mpc_name	(3040) Kozai
alt_names	1979 BA
named_after	Yoshihide Kozai
(Japanese astronomer)
mp_category	Mars-crosser
orbit_ref
epoch	4 September 2017 (JD 2458000.5)
uncertainty	0
observation_arc	38.36 yr (14,011 days)
aphelion	2.2096 AU
perihelion	1.4717 AU
semimajor	1.8406 AU
eccentricity	0.2004
period	2.50 yr (912 days)
mean_anomaly	213.41°
inclination	46.640°
asc_node	143.51°
arg_peri	290.19°
dimensions	4–11 km (conversion)
spectral_type	SMASS = S
abs_magnitude	13.8

(Japanese astronomer)

3040 Kozai, provisional designation , is a stony asteroid and Mars-crosser on a tilted orbit from the innermost regions of the asteroid belt, approximately 4 kilometers in diameter.

The asteroid was discovered by American astronomer William Liller at Cerro Tololo Inter-American Observatory in Chile, on 23 January 1979, and named after Japanese astronomer Yoshihide Kozai. It is considered a classical example of an object submitted to the Kozai effect, induced by an outer perturber, which in this case is the gas giant Jupiter.

Orbit and classification

Kozai orbits the Sun in the inner main-belt at a distance of 1.5–2.2 AU once every 2 years and 6 months (912 days). Its orbit has an eccentricity of 0.20 and an inclination of 47° with respect to the ecliptic.

On 10 January 2044, the asteroid will make a close approach to Mars, passing the Red Planet at a distance of 0.034 AU.

Physical characteristics

In the SMASS classification, Kozai is a common S-type asteroid. As of 2017, little is known about its size, composition, albedo and rotation.

With an absolute magnitude of 13.8, Kozai's diameter can be estimated to measure between 4 and 11 kilometers, for an assumed albedo in the range of 0.05–0.25. Since Kozai is a brighter S-type asteroid rather than a darker carbonaceous body, its diameter is on the lower end of NASA's generic conversion table, as the larger the body's diameter, the lower its albedo at a constant absolute magnitude.

Naming

This minor planet was named in honour of 20th-century Japanese astronomer Yoshihide Kozai, discoverer of the periodic comet D/1977 C1 (Skiff-Kosai) and of the Kozai mechanism. The official naming citation was published by the Minor Planet Center on 2 July 1985 (M.P.C. 9770).

References

Info: Wikipedia Source

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mars-crossing-asteroids discoveries-by-william-liller named-minor-planets s-type-asteroids-(smass) astronomical-objects-discovered-in-1979

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