1997 AP21 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.
The absolute magnitude of the object is 15 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 Longitude of Ascending Node of the object is 57.87454 degrees. The Argument of Perihelion is 43.243. 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 281.01077, is the angular distance of the planet from the perihelion or aphelion. Ref:Dictionary.The Semi-Major Axis of the orbit is 2.2212860, which is the furthest point from the centre to the edge of an elliptical point.
The orbital inclination, the angle at which 1997 AP21 orbits in relation to the orbital plane is 2.03393 degrees. The orbital eccentricity is 0.0944363, it is the degree at which 1997 AP21 orbits close to a circular (0) orbit as opposed to an elliptical (1) orbit.
|Longitude Of Ascending Node||57.87454|
|Argument of Perihelion||43.243|
|Orbital Inclination (degrees)||2.03393|
There's no register feature and no need to give an email address if you don't need to. All messages will be reviewed before being displayed. Comments may be merged or altered slightly such as if an email address is given in the main body of the comment.
You can decline to give a name which if that is the case, the comment will be attributed to a random star. A name is preferred even if its a random made up one by yourself.