In particular there was, according to Aryabhata I, a basic period of 4320000 years called a mahayuga and it was assumed that the sun, the moon, their apsis and node, and the planets reached perfect conjunctions after this period.
He noted that if the bob was drawn back and released then it followed an elliptical path, and moreover the major axis rotated in the direction of revolution exactly as did the apsides of the moon's orbit.
The angle between Mars and the line of apsides is greater than 90 degrees in the unbisected vicarious hypothesis, and less than 90 degrees in the bisected version.
Because of gravitational disturbances by the other planets, the shape and orientation of the orbit are not fixed, and the apsides slowly move with respect to a fixed frame of reference.
Both the apsidal axis and the moon's nodal axis rotate.
The trajectory is a half ellipse with its apsidal axis coinciding with Q1Q2, and the trajectory conic is the well-known Hohmann's ellipse.
At time II the line of apsides has turned through 90 degrees and we get a symmetric eclipse, indistinguishable from a circular orbit.
By latus component we mean the component of the orbital velocity in the direction perpendicular to the apsidal axis of the orbit.
Here, is the Sun, the planet, the geometric center of the orbit, the equant, and the line of apsides .
However, the speed of the apsides is very much slower than in the figure.