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Because planets are also in the zodiac, planets are usually much brighter than stars, so whenever the moon approaches the planets, it is easier to attract people's attention. Venus, the brightest planet, is always not too far away from the sun, whether it is the morning star before dawn or the evening dragon.
When the moon moves to the sky near the sun, whether it is the new moon at the beginning of the lunar calendar or the waning moon at the end of the lunar calendar, it is thin and dark, so as to avoid the effect of "fewer stars in the moon". If the moon is close to Venus at this time, then the less bright moon is close to the particularly bright Venus, and Venus is particularly eye-catching.