Universe Guide

(1) Ceres Asteroid

Ceres 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. Its mass is estimated/calculated at being 930,000 kg.

It was discovered in the year 1801 by Giuseppe Piazzi. Its orbit takes 4.6 years to travel round the Sun. Its takes 9.074 hours to do a full rotation period.

The absolute magnitude of the object is 3.34 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 1. The Albedo is the amount of radiation that is reflected back into space by the object.

The Aphelion of the object is 2.9773 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 2.5577 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 80.30553 degrees. The Argument of Perihelion is 73.59764. 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 77.37215, is the angular distance of the planet from the perihelion or aphelion. Ref:Dictionary.The Semi-Major Axis of the orbit is 2.7691652, which is the furthest point from the centre to the edge of an elliptical point.

The approximate diameter of Ceres is 960x932 km.

The orbital inclination, the angle at which Ceres orbits in relation to the orbital plane is 10.59407 degrees. The orbital eccentricity is 0.0760091, it is the degree at which Ceres orbits close to a circular (0) orbit as opposed to an elliptical (1) orbit.

Image of Ceres

Image of Ceres .

Path of Ceres 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 Ceres Orbit

Ceres Facts

Mass (kg)930,000
Year of Discovery1801
DiscovererGiuseppe Piazzi
Orbital Period4.6
Rotation Period9.074 hours
Absolute Magnitude3.34
Aphelion (Furthest)2.9773 A.U.
Perihelion (Nearest)2.5577 A.U.
Longitude Of Ascending Node 80.30553
Argument of Perihelion73.59764
Mean Anomoly 77.37215
Semi-Major Axis 2.7691652
Approx. Diameter960x932
Orbital Inclination (degrees)10.59407
Orbital Eccentricity0.0760091

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