What is the relationship between sunrise and sunset?

The time of sunrise and sunset is related to latitude, longitude and season.

Sunrise time varies with season and latitude. Traditionally, in the northern hemisphere, the sunrise time from winter solstice is the latest, but in fact, the sunrise time should be at the beginning of 1 month. Similarly, the earliest sunrise is not in the summer solstice, but in early June. Even in the equatorial region, the time of sunrise and sunset in a year is slightly different.

Sunset time varies with season and latitude. Traditionally, in the northern hemisphere, the earliest sunset occurred in the winter solstice, and the latest sunset occurred in the summer solstice. But in fact, the earliest sunset should be 65438+early February, and the latest sunset should be the end of June. Even in the equatorial region, the time of sunrise and sunset in a year is slightly different. These changes can be represented by daily trajectories.

Extended data:

Sunrise principle:

Because sunlight is refracted by the influence of the earth's atmosphere, people have seen the sunrise before the sun rises to the horizon, which is the illusion of sunrise every day. Ancient astronomers in China recorded a rare astronomical phenomenon called "the sky rises again", which means rising for two consecutive days on the same day.

The total solar eclipse usually caused by astronomical wonders is from 5 am to 7 am. When the sun first rose, the sky gradually darkened, and then it came out the next day.

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