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Mercury, Venus, Mars, Jupiter, and Saturn.

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The planets that were known before the telescope was invented were?

Mercury, Venus, (Earth), Mars, Jupiter, Saturn


What 8 planets were known to make up the solar system before the telescope was invented?

Earth, Mercury, Venus, Mars, Jupiter, Saturn. There were six.


What planet was first discovered by telescope?

Uranus, which was discovered by Sir William HerschelPrior to the invention of the telescope, the only known planets were Mercury, Venus, Earth, Mars, Jupiter, and Saturn.Uranus was the first planet discovered by telescope.


Who used a telescope to make detailed observations of the stars and planets.?

Galileo Galilei used a telescope to make detailed observations of the stars and planets. He is most well known for suggesting that the Earth revolves around the Sun, and not the other way around.


How many planets were discovered using telescop?

Some sort of telescope was involved in the discovery of ALL known planets - about a thousand, at the time of this writing - with the exception of the five planets that can be seen with the naked eye.


Who and when was Venus discovered?

Venus is one of the planets that is visible without a telescope. The planet has been known since antiquity. Galileo was the first astronomer to study Venus through a telescope.


What were Isaac's last work before he died?

Sir Issac Newton was known for being an inventor. He invented the reflective telescope and discovered some planets Uranus and Neptune also Saturn.He was physicist and astronomer, mathematician.


Can you see mars without a telescope?

Yes. Mars has been known since ancient times, long before the telescope was invented.


Did Johannes Kepler discover Kepler planets?

No, Johannes Kepler is best known for describing the laws that dictate how orbits work. The Kepler planets were discovered by the Kepler telescope, a spacecraft named in his honor.


Did Anton van leeuwenhoek invented telescope?

Antonie van Leeuwenhoek did not invent the telescope. He is known for being one of the first microscopists, known for his work in developing and improving the microscope to observe microorganisms and cells. Galileo Galilei and Hans Lippershey are credited with the invention of the telescope.


Who invented the telescope lenses?

Lenses had been known for some time before the telescope was invented. No one really specifically "invented" the telescope lens, they simply used existing equipment (lenses) in a new device (the telescope).


How many Bodies were known in the Universe before the Telescope?

Before the telescope, people were aware of the Sun, Moon, and visible planets (Mercury, Venus, Mars, Jupiter, Saturn). They were also familiar with comets and meteors as occasional celestial events. Overall, the understanding of celestial bodies was limited compared to what we know today with the aid of telescopes and advanced technology.