Universe Guide

(65909) 1998 FH12 Asteroid

1998 FH12 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. A close approach will occur on 2003 Jun 27 when it will get to within 0.0495 A.U. Its orbit takes 1.14 years to travel round the Sun.

The absolute magnitude of the object is 19.2 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 Longitude of Ascending Node of the object is 108.61586 degrees. The Argument of Perihelion is 284.4901. 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 267.32594, is the angular distance of the planet from the perihelion or aphelion. Ref:Dictionary.The Semi-Major Axis of the orbit is 1.0911562, which is the furthest point from the centre to the edge of an elliptical point.

The orbital inclination, the angle at which 1998 FH12 orbits in relation to the orbital plane is 3.55992 degrees. The orbital eccentricity is 0.5396870, it is the degree at which 1998 FH12 orbits close to a circular (0) orbit as opposed to an elliptical (1) orbit.

1998 FH12 Facts

Asteroid TypeApollo
Date of Closest Approach2003 Jun 27
Distance on Closest Approach0.0495 A.U.
Orbital Period1.14
Absolute Magnitude19.2
Longitude Of Ascending Node108.61586
Argument of Perihelion284.4901
Mean Anomoly267.32594
Semi-Major Axis 1.0911562
Orbital Inclination (degrees)3.55992
Orbital Eccentricity0.5396870

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