The mass of the sun is 2 × 1030 kg, and the distance between neptune and the sun is 30 au. what is the orbital period of neptune in earth years? 30 earth years 164 earth years 3.8 × 1011 earth years 2.3 × 1017 earth years

The best answer to the question: What is the orbital period of Neptune in Earth years, would be: B: 164 Earth years.

Explanation:

The problem states to us that the Sun is 2x 1030 kg, and that the distance between Neptune and the Sun is 30 AU. According to my research on Kepler´s laws, and after doing the whole mathematical equation that he created to establish the orbiting of different planets, both far and near to the Sun, I found that the correct law that applied in this case would be Kepler´s Third Law, which he created specifically to establish the length of orbit of a planet further away from the Sun. Given the data, in total of days, Neptune takes around 60190.03 days in Earth time and the total of years after dividing by the Earth´s own time of orbit around the Sun: 365 days, yields a total of 164 Earth years.