From this picture, I see that my world is a little bigger than it really is. This is because Budasi designed this model numerically correct and excluded astronomical accuracy. (If drawn on a true scale, the world would be too small to see). So if you want to estimate the scale of the objects in the universe, imagine this image in terms of position (used in reflection) and assume that the sun is in the middle. In that case, objects farther away from the sun would be considered larger in size.