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-   -   Why does the moon always have a dark side? (http://www.velocityreviews.com/forums/t254832-why-does-the-moon-always-have-a-dark-side.html)

 Richard Henry 04-07-2004 05:24 AM

Re: Why does the moon always have a dark side?

<true_anal@mail.ru> wrote in message news:40735763.7140.A8CBF0@localhost...
> title says it all

Because there is only one sun?

Actually the "dark" side can be lit up quite a bit from reflected Earthshine
when the angles are right.

 John Popelish 04-07-2004 05:32 AM

Re: Why does the moon always have a dark side?

true_anal@mail.ru wrote:
>
> title says it all

The Moon is lit by the Sun. The Sun is off to one side of the Moon.
One side lit, one side dark. You would need two suns to light both
sides at the same time.

--
John Popelish

 vhl 04-07-2004 05:56 AM

Re: Why does the moon always have a dark side?

true_anal@mail.ru wrote:
> title says it all

Its because by some fluky chance, the moon rotates at the
same rate as the earth does so the near side is always
facing the earth, so even when its in shadow, its still
the same side. We can see more than half the sphere as
we can see it from different parts of the earth.

--
Vin
Melbourne, Australia
Remove no and spam from both sides of the @ sign email address to reply

 Squishua 04-07-2004 06:20 AM

Re: Why does the moon always have a dark side?

On Wed, 07 Apr 2004 01:20:35 -0400, true_anal@mail.ru wrote:

>title says it all

Over the course of a lunar day (29.5 earth days) all sides of the moon
receive sunlight. If you are operating under the assumption that one
particular side of the moon *never* recieves light, you are mistaken.

The "dark side" of the moon refers to the "forbidden" side that is
never viewed directly from earth (or at least has not been viewed
directly for eons) because the same side of the moon always faces us.

Regards,

Squishua

sqSuPiAsMhua@hotmail.com
(remove the capital letters from my e-mail address to contact me)

 Ida Noe 04-07-2004 06:42 AM

Re: Why does the moon always have a dark side?

Ahh..so what kind of light fill ratio should one use to bring out the

How much depth of field would you need to get the whole moon in focus?

Would you tell the moon to say "cheese"?

On 7-Apr-2004, John Popelish <jpopelish@rica.net> wrote:

> true_anal@mail.ru wrote:
> >
> > title says it all

>
> The Moon is lit by the Sun. The Sun is off to one side of the Moon.
> One side lit, one side dark. You would need two suns to light both
> sides at the same time.
>
> --
> John Popelish

 Jason Pawloski 04-07-2004 07:30 AM

Re: Why does the moon always have a dark side?

<true_anal@mail.ru> wrote in message news:40735763.7140.A8CBF0@localhost...
> title says it all
>

No such thing as the dark side of the moon. Matter of fact, its all dark.

(Blatantly stolen from Floyd)

 Obake 04-07-2004 10:40 AM

Re: Why does the moon always have a dark side?

In article <40735763.7140.A8CBF0@localhost>, true_anal@mail.ru wrote:
>title says it all
>

one side of the moon is heavier then the other. the heavy side was/is
attracted by earth's gravity and over the many many years has stabilized so
only one 'side' of the moon faces the earth.

 Nacho 04-07-2004 12:48 PM

Re: Why does the moon always have a dark side?

> one side of the moon is heavier then the other. the heavy side was/is
> attracted by earth's gravity and over the many many years has stabilized so
> only one 'side' of the moon faces the earth.

This is completely off-topic, but it is not true. The point is tidal
forces. Tidal forces creates intense deformations in the moon when it
rotated, time ago. This deformations uses energy, obtained from its
rotation. So it slowly stopped. It could have been stopped in any other
position.

Best regards.

 Robert J. Kolker 04-07-2004 02:28 PM

Re: Why does the moon always have a dark side?

true_anal@mail.ru wrote:

> title says it all

Any light seen from the Moon is relected light. Since the only
significan t source of the light is from the Sun and there is only one
Sun, then only one side of the Moon is lit up by the Sun.

Bob Kolker

>

 Sam Wormley 04-07-2004 02:33 PM

Re: Why does the moon always have a dark side?

"Robert J. Kolker" wrote:
>
> true_anal@mail.ru wrote:
>
> > title says it all

>
> Any light seen from the Moon is relected light. Since the only
> significan t source of the light is from the Sun and there is only one
> Sun, then only one side of the Moon is lit up by the Sun.
>
> Bob Kolker
>

We (posters) should add that only half of the spheroid is illuminated,
a opposed to more than half, because the illumination source is far
enough away to approximate a point source.

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