Universe Guide

(10199) Chariklo Asteroid

Chariklo is an asteroid, a large rock that orbits the Sun mainly between the orbits of Mars and Jupiter. They tend to be an irregular shaped but Ceres asteroid is known to be spherical in shape but because it doesn't clear its path round the Sun, it is only a dwarf planet.

Chariklo was discovered on 15th Feb 1997 by Spacewatch. Its orbit takes 62.93 years to travel round the Sun.

The absolute magnitude of the object is 6.7 which is the brightness of the object. A higher absolute magnitude means that the object is faint whereas a very low number means it is very bright.

The albedo of the object is 0.045. The Albedo is the amount of radiation that is reflected back into space by the object.

The Aphelion of the object is 18.544 A.U. which is the point in the orbit that is furthest from the object that it is orbit. At this point, it will then return back to the orbit target. The Perihelion of the object is 13.139 A.U. which is the point in the orbit that is closest to the object that it is orbit around. The Longitude of Ascending Node of the object is 300.4 degrees. It is the angle between the Reference Direction and the Ascending Node. It is normally represented by the greek letter Ω. The ascending node is the point in which the object passes north. The descending node is the southern.The Argument of Perihelion is 243.4. It is the angle along the orbit of a planet or other Solar System object as measured from the ascending node (analogous to right ascension and longitude) Ref:Hawaii.

The mean anomoly is 86.7, is the angular distance of the planet from the perihelion or aphelion. Ref:Dictionary.The Semi-Major Axis of the orbit is 15.842, which is the furthest point from the centre to the edge of an elliptical point.

The approximate diameter of Chariklo is 252 km.

The orbital inclination, the angle at which Chariklo orbits in relation to the orbital plane is 23.4 degrees. The orbital eccentricity is 0.171, it is the degree at which Chariklo orbits close to a circular (0) orbit as opposed to an elliptical (1) orbit.

One of the most interesting items about this asteroid is that it has a ring around it. When people think of a ring, they probably think of science fiction or the rings of Saturn and not an asteroid. The Wiki page reveals that there are two sizes for the asteroid and either can be right. The site only deals with absolutes which is why you will find some sites will have multiple values for figures.

Path of Chariklo Orbit

If the white lines are above, then the path of the object is under the ecliptic. If the white lines are below, the path is above the ecliptic. This refers to the Inclination of the object. The image was created using N.A.S.A. Solar System Dynamics.

Path of Chariklo Orbit

Chariklo Facts

Asteroid TypeCentaur
Date of Discovery15th Feb 1997
Orbital Period62.93
Absolute Magnitude6.7
Aphelion (Furthest)18.544 A.U.
Perihelion (Nearest)13.139 A.U.
Longitude Of Ascending Node300.4
Argument of Perihelion243.4
Mean Anomoly86.7
Semi-Major Axis15.842
Approx. Diameter252
Orbital Inclination (degrees)23.4
Orbital Eccentricity0.171

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