- #1

- 34

- 0

## Main Question or Discussion Point

I used this equation to find the time in seconds for the Earth to complete 1 orbit around the Sun.

[tex] p=2\pi\sqrt\frac{\alpha^3}{\mu} [/tex]

I put in 149598261000 metres for the semi-major axis, and 1.33E+20 for the gravitational parameter.

I got 3155391.8 seconds for the period.

This I believe is incorrect; I was expecting 315558432.4640 seconds, an anomalistic year.

Have I put the wrong values in?

[tex] p=2\pi\sqrt\frac{\alpha^3}{\mu} [/tex]

I put in 149598261000 metres for the semi-major axis, and 1.33E+20 for the gravitational parameter.

I got 3155391.8 seconds for the period.

This I believe is incorrect; I was expecting 315558432.4640 seconds, an anomalistic year.

Have I put the wrong values in?