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because they didn't know anything about them.
Early astronomers used only their eyes to look at the stars. They used maps of the stars for religious reasons and also to work out the time of year. Early civilizations such as the Maya people and the Ancient Egyptians built simple observatories and drew maps of the stars positions. They also began to think about the place of Earth in the universe. For a long time people thought Earth was the center of the universe, and that the planets, the stars and the sun went around it. This is known as the geocentric model of the Universe.
The masses of the two stars.
The spectra of the stars you want to analyze.
the stars don't move the earth rotates and that's why we think we see the stars move
penis
People in the past usually studied the stars because they used it to make Calenders and days
around Earth!
some people think 21 main stars and others 7 main stars.
Some people believe that their lives are affected by the position of the stars and planets. These people put their hopes in astrology.
Planet means wandering star.
because they didn't know anything about them.
They used the stars to navigate by using the north star
People have always thought about the stars in Gemini as long as there have been people and the constellation Gemini, because people have eyes and they think about what they see. Otherwise, I don't know a specific time.
They used them to help them find their direction.
zilllions of poeple.
The ancient Greeks. I know the Babylonians and Sumerians were before the Greeks. I think the Chinese studied the stars even earlier.