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Observing the Sun's Last Days from Earth
A while ago, all the way back in August, a question came up about Red
Giants and earthlike planets. As part of the discussion, I provided a reference to Scientific American, but I didn't have the complete article with me at the time. Here, from page 56 of the July 2004 issue, from the article "The Extraordinary Deaths of Ordinary Stars", is some detail: - The sun will swell to the size of Earth's present orbit - Mercury and Venus will be burned up - Earth will survive (sort of) because the sun will lose material, reducing gravity enough that our cinder will be in a new, larger orbit - You won't see much else than the sun: "As one edge sets in the west, the other will begin to rise in the east". - Once the sun moves on to white dwarf mode, the earth will be covered in a cloud of rock plasma from the ultraviolet radiation. - Then when the sun goes to cinder mode, the earth will be thoroughly frozen. Thread included my msg at http://groups-beta.google.com/group/sci.space.policy/msg/2427ad6391214fdd /dps -- Using Opera's revolutionary e-mail client: http://www.opera.com/m2/ |
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