How much bigger is our Milky Way galaxy compared to the size of the Earth?

Answer: Assuming a diameter for the Milky Way galaxy of about 15 kpc, which is about 4.6×10^(17) km, and a diameter for the Earth of about 12756 km, the ratio of the diameter of the Milky Way galaxy to that of the Earth is about 3.6×10^(13).

How large would the Milky Way be?

about 100,000 light-years
Our galaxy probably contains 100 to 400 billion stars, and is about 100,000 light-years across. That sounds huge, and it is, at least until we start comparing it to other galaxies. Our neighboring Andromeda galaxy, for example, is some 220,000 light-years wide.

How big would the Earth be if the sun was the size of a basketball?

If the Sun was a basketball (about 23 cm in diameter), then the Earth would be the size of a tiny bead, just over 2 mm wide. Since the average Earth-Sun distance is about 150 million km, this bead would sit about 25 m away from the basketball.

What is far larger than our Milky Way galaxy?

But the Andromeda galaxy is a whole separate galaxy, even bigger than our Milky Way. In a dark sky, you can see that it’s big on the sky as well, a smudge of distant light larger than a full moon.

How big is the Milky Way compared to the solar system?

The Milky Way is approximately 890 billion to 1.54 trillion times the mass of the Sun. To compare the relative physical scale of the Milky Way, if the Solar System out to Neptune were the size of a US quarter (24.3 mm (0.955 in)), the Milky Way would be approximately the size of the contiguous United States.

How big would the Earth be if Jupiter was the size of a basketball?

If the enormous planet was about 80 times more massive, it would have actually become a star instead of a planet. Jupiter’s immense volume could hold more than 1,300 Earths. That means that if Jupiter were the size of a basketball, Earth would be the size of a grape.

What is bigger Milky Way or Andromeda?

By some estimates, the Andromeda Galaxy contains roughly one trillion stars. That’s significantly bigger than the Milky Way, which more recent estimates suggest is 150,000 light-years across (though the exact boundary of where either of these galaxies “end” is a bit nebulous).