According to Kepler's second law of planetary motion when planets are close to the sun they move faster.
As a planet orbits the Sun, an imaginary line connecting it to the Sun sweeps equal portions of space at equal time intervals. Essentially, planets do not travel at a constant pace along their orbits.
The velocity of a planet along its elliptical journey is described by Kepler's Second Law. According to Kepler's Second Law, a line going from the sun to the planet sweeps out equal regions of the ellipse in equal times. This means that the planet accelerates as it approaches the sun and decelerates as it leaves from it.
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