SOLAR SYSTEM

Detailed explanation-1: -Argument of periapsis () defines the orientation of the ellipse in the orbital plane, as an angle measured from the ascending node to the periapsis (the closest point the satellite object comes to the primary object around which it orbits), the purple angle in the diagram.

Detailed explanation-2: -Argument of perigee () is the angle between ascending node and perigee. If both perigee and ascending node are existing at same point, then the argument of perigee will be zero degrees. Argument of perigee is measured in the orbital plane at earth’s center in the direction of satellite motion.

Detailed explanation-3: -Orbital Shape The orbital paths of the moon around the earth and the earth around the sun are both elliptical. The point in the moon’s orbit where it is farthest from the earth is called apogee, while it’s closest approach is known as perigee.

Detailed explanation-4: -An inclination of 0° is a face-on orbit, meaning the plane of the exoplanet’s orbit is perpendicular to the line of sight with Earth. An inclination of 90° is an edge-on orbit, meaning the plane of the exoplanet’s orbit is parallel to the line of sight with Earth.

Detailed explanation-5: -The argument of perigee, indicates the orientation of the orbit, or where its perigee is located. It is the angle measured between the ascending node vector, , and the location of perigee, at which the eccentricity vector, , points.