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Which planet was first discovered using a telescope?
Quick Answer
Uranus was the first planet discovered with a telescope. William Herschel identified it in 1781.
The Full Story
Uranus was the first planet discovered using a telescope, by William Herschel in 1781. Ancient observers knew the five naked-eye planets, but Uranus appeared as a faint point of light until Herschel noticed it was moving differently from a star. The discovery expanded the known Solar System for the first time in modern history. It also demonstrated that more planets could still be found with better instruments.
Key Facts
1.Discovery year: 1781
2.Discoverer: William Herschel
3.First planet found with a telescope
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Suggested video title for this topic:
"The planet that changed the size of the Solar System."
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