Why can I sometimes see the moon during the day?

The reason why you can see the moon during the day: the moon is bright enough to appear in the sky, and the moon and the sun appear on the horizon at the same time. At this time, because the rotation period of the earth around the sun is different from that of the moon around the earth, this celestial phenomenon needs certain conditions to be directly observed by the naked eye. Generally speaking, the moon can only be seen during the day from 2/kloc-0 to 23/lunar calendar in autumn when the sky is clear and visibility is good.

It is a natural phenomenon that the moon appears in the daytime, which is also called the sun and the moon shine together. Generally, you can't see the moon during the day, because the atmosphere scatters the sunlight that shines on the earth, thus isolating the faint moonlight. But when the moon is bright enough in the daytime and close to the sun, the rotation period of the moon around the earth coincides with the rotation period of the earth, and it will appear when the moon and the sun are on the same side.

The moon is easy to be seen in broad daylight except from 2 1 day to 23 rd of the lunar calendar. In fact, if the definition is sufficient, the moon can be seen at other times through careful observation. During the day, the moon is visible for many days (except days near the new moon), but it needs careful observation to be found.

Extended data:

To see the moon during the day, you can choose the first half of the lunar calendar (after the fourth day of the fourth lunar month), when the sun sets, and the position of the moon moves from west to east in turn. In the second half of the lunar calendar (before the 27th), the moon can be seen after the sun rises, and its position moves from the western sky to the eastern sky in turn.

Seeing the moon during the day is just a natural phenomenon. Theoretically, as long as the atmospheric conditions are good, this phenomenon may occur except the fifteenth day of the lunar calendar. But there is a second condition, that is, the limit magnitude of the sky should not be too low, so generally speaking, when the sun rises or is about to set (even in cities), the brightness of the sky can easily meet this condition, and it is not difficult to see the moon during the day. For example, on September 30, 20 18, the landscape in Changsha is very clear.

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