> I'm trying to do a scene inspired by the videogame Halo, but  my
> gas-giant is the size of Jupiter (1 unit = 1 inch.) yet it copletely
> disappears from less than 170 miles out.  Unless i'm much mistaken, an
> object that size should be vizible from several thousand miles distant.


Heh, as others have pointed out, 170 miles is a whooooole lotta inches.
Thorsten and Warp have suggested that you change your scale. If, for some
reason, you don't want to change your scale (for instance, if you have a
small model of a telescope in the foreground that is only a few inches
long), then you may want to simple decrease the size of the planet by x
amount, and decrease its distance by x amount. For instance, if the planet
is 1000 km in diameter and 10000 km away, then just make it 1 km in
diameter, 10 km away. The difference will most likely be unnoticeable from a
stationary viewpoint.

 - Slime
[ http://www.slimeland.com/ ]

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