Quote:
Originally posted by: Tim_Lou
well, but titan is revolving around saturn, not sun lol. i guess thats why its not a planet.
|
Yes, that was my point. Some moons are actually bigger than planets. But since they revolve around a planet they are called moons, not planets.
But when you look at Jupiter, Saturn and Neptune it is astonishing how similar they are to solar systems - if we were somehow able build a base on, say, Titan, I wonder if they would actually feel like they live on a moon or on a planet. I gather Saturn would be pretty big in the sky.
Ah, too many sci-fi books again!
Tormod
