The planet is moving around the Sun at a faster angular speed \(ω\) and shorter period \(P_{\text{sid}} = 2π/ω\), which is called the sidereal period of the planet (i.e. Of all the major planets, Mars...The planet is moving around the Sun at a faster angular speed \(ω\) and shorter period \(P_{\text{sid}} = 2π/ω\), which is called the sidereal period of the planet (i.e. Of all the major planets, Mars has the longest synodic period, namely 780 days, so that it comes to opposition and is easy to observe at intervals of a little more than two years.