The farthest planet of our Solar System is Neptune.
Neptune is the eighth and farthest planet from the Sun. It is located at an average distance of about 2.8 billion miles (4.5 billion kilometers) from the Sun.
Here are the reasons why Neptune is the farthest planet:
- Distance from the Sun: Neptune is located at an average distance of 2.8 billion miles from the Sun, making it the farthest planet in our Solar System.
- Orbit: Neptune has a highly elliptical orbit, which means it deviates from a perfect circle. This elliptical orbit takes Neptune to its closest point to the Sun (perihelion) and its farthest point from the Sun (aphelion). Due to its elongated orbit, Neptune spends most of its time farthest from the Sun.
- Slow orbit: Neptune takes the longest time to complete one orbit around the Sun compared to the other planets in our Solar System. It takes approximately 165 Earth years for Neptune to complete one orbit. This slow orbit contributes to its position as the farthest planet.
- Discovery: Neptune was discovered in 1846 by astronomers Urbain Le Verrier and Johann Galle. Its discovery was based on mathematical predictions and observations of the gravitational influence it had on the orbit of Uranus. This discovery revealed the existence of a previously unknown planet beyond Uranus, solidifying Neptune's status as the farthest planet in our Solar System.
In conclusion, Neptune is the farthest planet of our Solar System due to its distance from the Sun, elliptical orbit, slow orbit, and its discovery as a result of the gravitational influences on Uranus.