In rec.arts.sf.science message <1210290695@[EMAIL PROTECTED]
>, Thu, 8 May 2008
23:51:35, Wayne Throop <throopw@[EMAIL PROTECTED]
> posted:
>:: If a planet has multiple moons, all large enough to be visible, as
>:: discs, from the surface (through the atmosphere), i.e. unlike the
>:: moons of Mars, will they all be in the same phase at the same time,
>:: i.e. full, waning, new, waxing?
>::
>:: If not, how does it work. Is there some kind of essay I can read, or
>:: a brief educational animation I can watch, or something?
>
>: You can test it yourself near Sunset on a fine day by sitting in an
>: open space with a number of footballs spread around you.
>
>Round balls are better. Or are these them european footballs?
The OP is posting, in excellent English, with a Scandinavian surname,
with a -0200 in his time-stamp, and a .dk message-ID. Naturally I had
normal footballs in mind for him, not things shaped like rugger balls.
But it does not matter; if the ball is to look like a round moon, then
naturally an axis of rotational symmetry (whether it's shaped like a
rugger ball or like Mesklin) will be pointed at the observer, and the
unequal axis will not much matter.
>I'd probably recommend, say, baseballs. Or tennis balls. Or oranges
>and/or grapefruits. But whatever. Whatever's handy, I suppose.
In English, grapefruit is both singular and plural. You are using an
alien tongue.
>In any event, you don't need sunset.
But it's nice outside these days; and from higher latitudes the Sun sets
relatively slowly, so there'll be no need for haste. Unless .dk has
..fi-type midges.
--
(c) John Stockton, nr London, UK. ?@[EMAIL PROTECTED]
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