posted on Dec, 17 2012 @ 09:58 AM
I personally don't get why someone doesn't think the Moon would look this way during some times of the year.
Considering that the apparent path of the Moon (as seen from the mid latitudes on Earth) would change during the year due to the tilt of the Earth
relative to the Moon phases, it is perfectly LOGICAL AND EXPECTED that the waxing crescent Moon would look heavily tilted at night as it heads toward
Moonset during the winter months.
If it didn't look more tilted in late fall/winter/early spring, then that would not make any sense. Everything I know about the Earth's tilt and
the would not make any sense.
The reason the Moon can look this way isn't hard to understand. I mean, I understood the reason those many years ago (as I mentioned in a post
above) when my amateur astronomer brother showed me why -- and I was about 10 at the time.
Consider the position of many people on Earth, living at the mid-latitudes of the Northern Hemisphere.These people are standing on the "side" of the
earth, with their bodies "sideways" relative to the polar view of the Earth Moon system we all see in books (this id the Polar View shown, with the
Now lets rotate the view to look at it from the point of view of that person standing on the side of the Earth. As you can see in the graphic below,
the Moon SHOULD in fact look tilted when viewed from the mid-latitudes:
Now consider that on Northern Hemisphere winter nights (not days) the night side of the earth is tilted more downwards; therefore, those people are
even more "sideways". So on winter nights, the waxing crescent Moon will appear to be even more tilted (from the viewpoint of an observer at the
Northern mid-latitudes) than in the graphic above.