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回答: 据我所知，月亮一直都在那。。。我还是帮你问一下我儿子吧~ 由 我说了算 于 2021-07-19 14:57
The moon does not give off its own light. It acts as a big mirror in the sky that reflects the light from the Sun. We see this moon as bright because of the light from the Sun. At night time, the moon is still reflecting light from the sun. If you see the moon at night, that only is possible for half of the world. The other half is in daytime and will not see that same moon. Since the Earth takes 24 hours to rotate once, after 12 hours, the other half is now night and will see the moon while you wilil be in daytime and will not see the moon. However the moon also *orbits* around the Earth once every month, the position of the moon changes in relation to the Earth and Sun. Sometimes it will be between the Earth and Sun (daytime) and sometimes the Earth will be between the Moon and Sun(nighttime). When it does that the mirror that reflects the light from the Sun will only reflect a little bit. If only half of the moon is reflected then it will look like 🌓, if only a small angle then it will look like 🌒. Sometimes at night time the sunlight will perfectly bounce off the moon and look like a full moon🌕. You cannot get a full moon during the daytime as the sun is also out and the angle created when reflecting will mean that it will look more like 🌘🌗. It is more common that the moon will look like 🌑 in the day because the reflection will make the moon bright on only one side that is not facing you. However during times closer to sunrise/sunset, you will sometimes be able to see just enough of an angle to see a crescent moon🌒 but almost never a full moon as full moon is only up during 6pm - 6 am. There’s a lot of information I’m leaving out but hopefully that gives you a general idea of how it works. I also attached a small infographic to showcase this. Let me know if you have any questions!
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