Fortune Telling Collection - Zodiac Analysis - How does the constellation change in a day?
How does the constellation change in a day?
On a clear moonless night, standing in an open place, you will see the stars twinkling in the dark sky. If you keep looking at the sky, you will find that the stars rise in the east, slowly sweep across the sky, and then set in the west, just like the sun rises and sets every day. In fact, this is also the result of the earth's rotation from west to east. Every day, except that stars can be seen orbiting the earth from east to west, every star rises from the horizon about 4 minutes earlier than the previous day. So at the same time every night of the year, we see different stars, and the position of the constellation is gradually moving westward. For example, the familiar Orion, 65438+ rises in the east at dusk in early February; Three months later, just after dusk, Orion has flashed in the southern sky; But by the end of spring, it was already dusk. With the progress of the season, the slow movement of the constellation to the west is the result of the earth's revolution around the sun. If we can see the stars during the day, then we will see the sun moving eastward between constellations. The sun moves eastward about 1 every day, which is equivalent to twice the diameter of the sun. In this way, it carried out a so-called "annual star-watching movement" on the celestial sphere within one year. Generally speaking, there are two kinds of motion phenomena of stars: one is the Sunday apparent motion caused by the rotation of the earth, which causes the stars to rise and set every night; The other is the annual apparent motion caused by the earth's revolution, which makes constellations appear and disappear with the seasons, and the hidden time also changes. The two should not be confused.
- Previous article:What constellation binds men?
- Next article:Twelve constellations depression index ranking
- Related articles
- What courses do railway engineering survey majors mainly study?
- In the zodiac, they seldom talk about themselves. What constellations like to hide like snails?
- What phase does the constellation have _ What phase does the constellation have?
- Why are there so few scenes of Orfila in "Sister Who Rides the Wind and Waves"?
- What constellation do single women like for boys?
- Needless to say, the lyrics. You and I are not perfect constellations.
- What constellation is born in December of the lunar calendar?
- How to calculate which constellation I belong to? I want to know whether the constellation is according to the lunar calendar or the sun.
- Measuring constellation girlfriends _ measuring constellation girlfriends value
- Chinese clothes and hair of the zodiac _ the difference between Chinese clothes and hair of the zodiac