Heh, yeah. Different way of looking at it, same result. :) Heck, we could take it a step further and look up densities, as well, and do a whole thing with the total mass of each body! No reason to go into that, though, since we are in total agreement on this. My only point was that a Mars-sized object hit early Earth and a bit of the ejecta eventually coalesced into our moon.
As an aside, from what I have watched/read, the Earth and the object basically destroyed each other, and were nothing but big piles (a single big pile?) of rubble for a LONG time. The early Solar system was a very dangerous place.
Heck, we could take it a step further and look up densities, as well, and do a whole thing with the total mass of each body!Wouldn't the mass of the moon be less comparatively as it lacks the heavier core?
Made of lighter materials.
Lighter than air.
That must be right!
I've SEEN it floating thru the night sky!
;-)