# Amplitude of spectroscopic signal

## Homework Statement

What is the amplitude of the spectroscopic signal if the inclination is 45 degrees?
Mass star = 1 mass of sun = 1.9891 x 10^30kg
Mass Planet = 10 mass Earth = 5.9736 x 10^25kg
Orbital period = 1 year

## Homework Equations

I'm not sure about even what equation to use.

## The Attempt at a Solution

I calculated the velocity of both masses, with velocity of the planet equalling 29.7km/s and the velocity of the star being 0.891km/s.

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