Location in a planet orbit closest to the sun ?

Perihelion is the location in a planet's orbit that is closest to the Sun.

Explanation:

The Sun is the central and only star in the Solar System. It has by far the biggest gravitational pull of any pace body in it so naturally, all planets orbit around it. The orbits of the planets though are not a perfect circle, instead, they are ellipses, with one part of their orbit being closer to the Sun while the other part being further away from the Sun.

The location of a planet's orbit that is the closest to the Sun is called perihelion. Basically, because the planet is the closest to the Sun at this point, it experiences the most of its gravitational pull. This results in the speeding up of the planet, thus it is also the part of the orbit when the planet moves the fastest. The opposite part of the orbit, when the planet is the furthest away from the Sun is called aphelion, and this is when the planet experiences the least of the Sun's gravitational pull and is the slowest.

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