What can appear at the same time, it's just that sometimes we can't see it.
The situations we cannot see are roughly as follows:
1. Cloudy days, especially when the clouds are thick.
2. In cities, on the one hand, air pollution reduces air visibility in the city, on the other hand, night light pollution in the city (city lights at night are also called city ). lights) makes the background of the night sky too bright.
3. At the beginning and end of the lunar calendar, as the moon is in the new moon phase at that time, almost its entire bright side does not face the earth
3. p>4. At the time of the full moon, at that time. Because the moon is so bright, the background of the sky is too bright, making the fainter stars difficult to see. This is what “the moon is bright and the stars are sparse” means.
Of course, the 2 and4 above are similar, just like we can't see the moon and stars during the day. The key is that the sky is too bright, obscuring their weaker light.
Sun?level_sun.gif?18*32
Moon?level_moon.gif?17*32
Stars?level_star.gif?15* 32
Just three basic cards, different levels and combinations
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