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Re: Yes, I'm back

From:James Landau <neurotico@...>
Date:Wednesday, January 22, 2003, 21:03
In a message dated 1/21/2003 9:18:19 AM Pacific Standard Time,
and_yo@HOTMAIL.COM writes:

> The rotational periods of Earth, Mars, Jupiter, Saturn, Uranus and Neptune > are all in the 9-25h range. The much longer rotational periods of Mecury > and > Venus are likely due to tidal slowing caused by their proximity to the Sun. > This has caused at least some astronomers to conclude that this order of > magnitude is "natural" for the rotational period of a terrestrial or jovian > planet.
Jovian? I've heard of terrestrial type and gas giant planets, but the site doesn't let you create a jovian type. I've never heard of them. Is that a type of planet of extreme size (in the sense of mass), enough to flatten anything that lands on the surface, but still made of solid material instead of being a giant of gas?


Tim May <butsuri@...>
John Cowan <jcowan@...>