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The Moon's Crecent is at the Bottom?
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[quote:Anonymous Coward 894746:MV85OTMwMTVfMTU1ODgwMTBfNkRCODY5MDA=] [quote:Anonymous Coward 894600] http://starchild.gsfc.nasa.gov/docs/StarChild/questions/question43.html A careful observer will certainly notice that over the period of months, the crescent of the Moon does indeed seem to go from being lit on the "bottom" of the Moon to being lit on the side of the Moon. So what is happening to make the Moon look different? It is all a result of the Moon's orbit around the Earth, and the Earth's orbit around the Sun. And exactly when you see the Moon in the shape of a 'U' (lit on the bottom) rather than a backward 'C' (lit on the side) depends on what latitude you are at. But the explanation is the same regardless of when you see it from your location. We see the Moon in the night sky because it is reflecting light from the Sun. The Moon does not generate any light of its own. So the lit part of the Moon always points toward the Sun. Now as you can see in the diagram, as the Earth travels aroound the Sun, the tilt of the Earth on its axis sometimes points the northern hemisphere toward the Sun and sometimes points the southern hemisphere toward the Sun. This is why we have seasons here on Earth. But this also changes the apparent path of the Moon across the night sky when you are on the Earth looking out at it. Sometimes it travels at an angle toward the horizon and sometimes it travels straight down toward the horizon. When the crescent Moon travels straight down toward the horizon, you will get the 'U' shaped Moon. Many describe this as when the 'horns' of the Moon point upward. This can happen once or twice a year, again depending on the latitude of your location. [/quote] unnormal indeed [/quote]
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Never seen this before in my whole life. Even my neigbours mentioned it. Is this a natural event?
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