The time interval between two successive repeated positions of a planet with respect to the Sun and Earth in its orbit, such as conjunction to conjunction, is known as
A) 1 day.
B) the planet's synodic period.
C) 1 year.
D) the planet's sidereal period.

Question

Quizplus · Accepted Answer

The planet's synodic period refers to the time it takes for a planet to return to the same position in the sky relative to the Sun and Earth, such as from one conjunction to the next. This period varies depending on the orbits of Earth and the other planet involved.

The Time Interval Between Two Successive Repeated Positions of a Planet