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Which planets were visible to the human eye in the ancient time?

In ancient times, the five planets visible to the naked eye were Mercury, Venus, Mars, Jupiter, and Saturn. These planets were observed and recorded by ancient civilizations such as the Babylonians and Greeks.


How many planets were known to the Greeks?

These are the classical planets, those that you can see without a telescope. These are Mercury, Venus, Mars, Jupiter and Saturn. they could be seen to be different to the stars, since they changed positions gradually in relation to the other stars (as they orbit the sun)


What year did the Greeks find the 5 planets?

The Greeks did not 'find' five planets. The Earth and theother five visible planets have been visible on any clear night for as long as humans have walked the Earth. They were known to any caveman with normal vision, a touch of insomnia, and enough brain cells to be interested in the things he saw in the sky.


What are the 5 planets besides earth that ancient observers could see with the unaided eye?

Mercury, Venus, Mars, Jupiter, and Saturn were the five planets known to ancient observers that could be seen with the unaided eye. They were visible to the naked eye due to their brightness and distinctive movements against the background of stars.


What did the Roman name the five points of that light that the Greeks called planets?

Jupiter, Mars, Mercury, Venus and Saturn


Why did Greeks see only five stars?

Ah, I'm going to assume you mean the ancient Greeks, and have to say they saw many more than five stars. Modern Greeks might have a problem though; if they live in the heart of a well-lit city, the light can block out the stars. We call it light pollution. But the ancients saw only 5 wandering stars - called planets - because only 5 planets are bright enough to be seen reliably. (Uranus has been glimpsed throughout history, but never tracked.)


What 5 planets did the early Greek people discover?

Mercury, Venus, Mars, Jupiter and Saturn were the first five planets to be discovered buy ancient civilisations. these five are also known as the `classical planets`.


How long have people looked at planets?

People have been watching the five visible planets since ancient times, and probably since the dawn of humanity.


What planets have been known since ancient times?

The five planets visible to the naked eye that have been known since ancient times are Mercury, Venus, Mars, Jupiter, and Saturn. These planets were observed and named by ancient civilizations such as the Greeks and Babylonians.


How did Pompeii get its name?

The volcano that destroyed the town of Pompeii is Mount Vesuvius.


Why could ancient observers only see five of the planets?

Ancient observers could only see five of the planets (Mercury, Venus, Mars, Jupiter, and Saturn) with the naked eye because these planets are bright enough to be visible without the aid of telescopes. The other planets in our solar system are either too distant, too dim, or too close to the Sun, making them harder to observe without optical aids.


What is the Definition of Classical planets?

Classical planets are the five planets visible to the naked eye from Earth: Mercury, Venus, Mars, Jupiter, and Saturn. They have been observed since ancient times and hold significance in various astrological and astronomical systems.