Declare variables for the radius of Venus and Earth
Set the values to 120 for Venus and 180 for Earth
In setup() set ellipseMode as RADIUS
The ellipse command now expects (xCentre, yCentre, xRadius, yRadius)
Create a new function drawOrbits()
Draw a circle to represent the orbit of Venus.
Set the strokeWeight to 1 for this
Problem: the interior of the circle is white