The Moon-landing Hoax - Revisited.

I can't figure it out...

We 'assume' light-speed' based on an average - Fine.
Average 182k miles per second - Nice.
BUT... In order to measure the distance (Pre-spectro) from an object, by light-speed' - - - We need to "KNOW" when the 'light' left the 'OBJECT'.
And - to 'Know' this - We need to be "ON/AT" the 'Object'.

So - Having 'NOT' been 'on' the moon, PRIOR to having (allegedly) been 'ON' the moon - Means - THERE IS NO way to determine how big the moon is or how far away it is.

AND THIS GOES FOR ALL 'celestial/non-earthly' objects.

So....
Either we obtained the info from a source that 'had/has' been at/on celestial-planes - Or we made it all up...?