What If The Moon Was Replaced With One of The Planets?

This is a really neat visualization. YouTube User yetipc1 posted a video depicting what our sky would look like if the moon was replaced with one of the planets in the solar system. The results are somewhat surreal.

The video is simple and within a minute iterates through the options, including Mars, Venus, Neptune, Uranus, Jupiter and Saturn. (Why not Mercury? According to the video description, "Mercury is intentionally left off as it isn't Much bigger than our Moon (and hence is boring)" Ok, then.)

You really should check out the detailed description which ironically takes way longer to get through than the video itself. It's chock full of information about the relative sizes of the planets, some of the liberties taken with the animation (such as moving Jupiter's moons closer to its surface) and how the video was produced.

And there's a fantastic FAQ which explores the what if's associated with replacing our moon with a planet. It contains some excellent observations including:
"We would suffer from really really horrible tides, and Volcanoes And some pretty bad Radiation from Jupiter. It *could* strip away our atmosphere, but haven't done the math. Eventually our planet would become tidally locked (that is the same side of Earth would always face Jupiter."
Oh, and you know, there's the whole radiation problem: Jupiter's radiation is so strong, "it could strip away our atmosphere". Well, that's a bit of a downer. Regardless, I could stare at Jupiter or Saturn all day; especially Saturn. Le sigh. Seriously, that thing is gorgeous, it would be hard to ignore.

Take a look and see if you spot some of the moons floating around the planets. The moon orbiting Saturn is Tethys, and apparently it would really fly close to Earth in its current orbit. Good to know, you know, in case we need to plan.

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