The coming solar eclipse over American will prove beyond doubt that the moon is less than or equal to 70 miles wide.
A shadow of an object is the same size or larger than the object. This is an observable irrefutable fact.
The width of the shadow of the moon on the Earth as it blocks the sun’s rays will give an estimate of the moon’s width.
The rays of the sun are parallel they cannot converge as is often depicted in pseudo scientific explanations.