Fortune Telling Collection - Zodiac Guide - What are constellations and stars?
What are constellations and stars?
China has an independent astrological system for a long time: the visible astrology in the northern hemisphere is divided into three regions and 28 communities, which are called "Three Walls and Twenty-eight Hostels". Many larger stars have their own names, which are much more complicated than the western system.
Now there are 88 constellations in the world, including all the stars in the sky. The earliest names of constellations visible in the northern hemisphere are mostly related to the beautiful myths of ancient Greece.
Since ancient times, people have always thought that there are countless stars. In fact, there are countless stars visible to the naked eye, and now they have been counted clearly. There are only 7083 stars visible to the naked eye all year round (up to the sixth grade). But it is impossible to see all the stars at the same time and place all year round, because we can only see half of the sky, and the other half is below the horizon. Near the horizon, starlight can only reach our eyes through the thick atmosphere, and darker stars are invisible. In fact, we can only see more than 3000 stars in the same place at the same time.
Look at the stars with a telescope. The larger the aperture of the telescope, the more stars you can see. It is not easy to count the stars photographed with large telescopes and cameras, but it can still be estimated that there are about 200 million stars in the Milky Way, which is estimated.
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