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How big is Deneb?

280,000,000 quilômetros!

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Deneb

Introduction

Have you ever wondered about the size of the stars you see twinkling in the night sky? One of those stars is called Deneb, and it's not just any star. It's a supergiant! ## What is Deneb? Deneb is a very bright star located in the constellation of Cygnus, also known as the Swan. It's one of the points in a pattern of stars called the Summer Triangle, and it's the "head" of another pattern called the Northern Cross. Deneb is the 19th brightest star in our night sky, shining with a brightness that is somewhere between 55,000 and 196,000 times that of our own Sun. It's a blue-white supergiant, which means it's much, much bigger than a regular star.

The Size of Deneb

When we talk about the "size" of a star, we usually mean its diameter, or how wide it is. If Deneb were placed where our Sun is, its surface would extend out past the orbit of Earth! That's right, Deneb is so huge that it's wider than the distance from the Earth to the Sun. Now, that's a supergiant!

  • Deneb is about 200 times larger than the Sun.
  • If Deneb were a hollow ball, you could fit 200 Suns inside it.
  • If Deneb were placed at the center of our solar system, it would extend past the Earth's orbit. ## Size Comparison To help you understand just how big Deneb is, let's compare it to some other things.
  • Deneb vs. the Earth: The Earth is about 12,742 kilometers in diameter. Deneb, on the other hand, is about 200 times larger than the Sun, which is about 1.4 million kilometers in diameter. That means Deneb is about 280 million kilometers across!
  • Deneb vs. the Sun: The Sun is our closest star, and it's so big that you could fit over one million Earths inside it. But Deneb is even bigger - you could fit 200 Suns inside Deneb.
  • Deneb vs. other stars: Deneb is one of the largest stars we know of, but it's not the biggest. There are a few stars, like UY Scuti and VY Canis Majoris, that are even larger.

Conclusion

So, next time you look up at the night sky, remember the supergiant star Deneb. It might not look like much from here on Earth, but it's one of the biggest and brightest stars out there. And who knows, maybe one day you'll get to visit a star like Deneb. Until then, keep looking up and wondering about the vast and incredible universe we live in!

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