Large moons look badass. I personally think our moon is too far away to appreciate it’s actual size. If it was closer to Earth, then it would look like the moon that is in that wallpaper. And we could see the craters and impressive scale on it much more clearly at night. and of course, full moons would probably be holy fuck bright as well due to reflection of the sun.
If it was closer to Earth we’d probably be fucking dead.
THAT’S NO MOON
And the tides would go batshit crazy and kill everyone.
Unfortunately it won’t be getting closer since it’s moving away from us by about 1.5" (4cm) a year.
forgot about that. Reminds me of Bruce Almighty. the oceans would be in the fuckin sky if the moon was that close.
It’s a lot further away and…um…larger. Yeah.
3-meter tide, 15-meter tide… I don’t see why everyone is so abject to closening the moon. Tides are arbitrary. If the oceans were like glass, would you freak out about a one-foot wobble?
So what if our tidal zones octuple in area? They’re still a negligible part of landmasses.
I really want to do the math to see if a more voluminous sphere of identical density would impart a greater gravitational attraction should it occupy the same sector of sky as a lesser body. It will give us a baseline with which to compare further bodies of even greater mass.
There’s a cube, and a square, and some gentle trig… I think I’ll actually do it, but… tomorrow or something.
probably yes
more volume + equal density = more mass = more gravity
no?
Yeah, that’s the…with the…carry the one and…hey, look at this:
but with the larger diameter spanning the same radians, the distance is greater
Gravitational effect is determined by the distance from the center of the object not by its perimeter.
Yes, that’s why I can’t just use the case of a hazelnut (virtually no gravity) eclipsing the moon from the perspective of your iris. It has to be from reference of the center of the earth.
If something at the earth’s surface eclipses the moon from perspective of the center of the earth, it’s quite fairly sized… certainly of a size I can’t quickly estimate. How does its gravitational effect on the earth compare with the moon’s pull? Is it greater than that larger/further body, as danielsangeo predicts, or does the moon win? I can’t say for sure without doing the math…
…
Considering the vast distances of these bodies, I’m contemplating whether it’s okay to use the object’s diameter (or whether it’s necessary to go with a chord between opposing tangential lines-of-sight)…
I suppose that in the case of objects spanning the same sector of sky (my point of comparison), the diameter and chord-length would be proportional.
I don’t believe I understand what you are trying to solve when the only relative gravitational factors are the center of the earth in relationship to the center of the other body. Diameters don’t matter.
-snip-
Masses do, you little fucker, and we’re talking about the sizes of astronomical bodies which we’ll idealize as having equal densities.
What the hell brought on that junior high school comment? Are you really that immature?
pretty sure he’s not even being half as serious as you are
