The moon is 1/400th the size of the sun but also 1/400th the distance from Earth which results in the moon and the sun being the same size in the sky, a coincidence not shared by any other known planet-moon combination.

submitted by Orangutan from (earthsky.org)

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[–]Tom_BombadilBombadildo 1 insightful - 1 fun1 insightful - 0 fun2 insightful - 1 fun -  (2 children)

Subtending is irrelevant as light from the sun at these distances can be considered parallel rays; for all practical purposes.

[–]RoxannaHardbutt 1 insightful - 1 fun1 insightful - 0 fun2 insightful - 1 fun -  (1 child)

You'll be on about the Flat Earth next ..

[–]Tom_BombadilBombadildo 1 insightful - 1 fun1 insightful - 0 fun2 insightful - 1 fun -  (0 children)

Accretion disk. Not Earth.