Re: Different skies

On Thu, 25 Dec 2008 21:34:00 +0100,
Tina_Hall@xxxxxxxxxxxxxxx (Tina Hall) wrote:
Geologically short would still be pretty long. An idea
that occurs to me for this is; could the approaching
galaxy mess up things so the moon(s) comes in closer
for a while, before it crashes?

No. Galaxies are sparse compared to planetary systems.

A tried and true SF way to get something really
impressive up in the sky, of course, is to make your
world itself a moon of a larger planet. However,
most such moons tend to be tidelocked to their
parent planet

What exactly does tidelocked mean?

The earth's moon is tidelocked to the earth. The moon
shows always the same face to the earth, and to someone
on the moon, the earth remains always in the same place
in the sky, while the stars slowly wheel past.

If a solid object in the sky looks as big as the earth
does from the moon, you are going to be tidelocked to
it.

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