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3556 Lixiaohua

Main-belt asteroid

Field	Value
minorplanet	yes
name	3556 Lixiaohua
background	#D6D6D6
image	003556-asteroid shape model (3556) Lixiaohua.png
caption	Shape model of Lixiaohua from its lightcurve
discovery_ref
discoverer	Purple Mountain Obs.
discovery_site	Purple Mountain Obs.
discovered	30 October 1964
mpc_name	(3556) Lixiaohua
alt_names	1964 UO
named_after	Li Xiaohua
(Chinese philanthropist)
mp_category	main-belt(outer)
Lixiaohua/Gantrisch
orbit_ref
epoch	4 September 2017 (JD 2458000.5)
uncertainty	0
observation_arc	52.49 yr (19,173 days)
aphelion	3.8577 AU
perihelion	2.4883 AU
semimajor	3.1730 AU
eccentricity	0.2158
period	5.65 yr (2,064 days)
mean_anomaly	169.06°
mean_motion	/ day
inclination	9.2364°
asc_node	240.89°
arg_peri	143.70°
mean_diameter
albedo
abs_magnitude	12.8

(Chinese philanthropist) Lixiaohua/Gantrisch

3556 Lixiaohua (prov. designation: ) is a dark Lixiaohua asteroid from the outer region of the asteroid belt, approximately 20 km in diameter. It is the parent body of the Lixiaohua family. The asteroid was discovered on 30 October 1964, by astronomers at the Purple Mountain Observatory near Nanjing, China. It was named after Chinese philanthropist Li Xiaohua.

Orbit and classification

Lixiaohua is the parent body and namesake of the Lixiaohua family, a smaller asteroid family of more than 700 known members which consists of C-type and X-type asteroid. The family is located in a zone of the outer main-belt where several orbital resonance overlap. Members of this family are also prone to close encounters with other large asteroids such as with the dwarf planet Ceres. With a diameter of 35 kilometers, the family's largest member is 3330 Gantrisch, which is the reason why the Lixiaohua family is often called "Gantrisch family". It is estimated that the family is million years old.

It orbits the Sun at a distance of 2.5–3.9 AU once every 5 years and 8 months (2,064 days). Its orbit has an eccentricity of 0.22 and an inclination of 9° with respect to the ecliptic. The body's observation arc begins with its official discovery observation at Nanjing in 1964.

Naming

This minor planet was named after Chinese philanthropist and industrialist from Beijing, who establish several schools in remote areas of China. The official naming citation was published by the Minor Planet Center on 5 January 1996 (M.P.C. 26424).

Physical characteristics

Rotation period

As of 2017, no rotational lightcurve of Lixiaohua has been obtained from photometric observations. The asteroid's rotation period, poles and shape remains unknown.

Diameter and albedo

According to the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Lixiaohua measures 20.085 kilometers in diameter and its surface has a low albedo of 0.035.

References

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.

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