How Many Earths Can Fit in the Sun?

[/caption]
So, how many Earths can fit in the Sun? The answer is that it would take 1.3 million Earths to fill up the Sun. That’s a lot of Earths.

The Sun makes up 99.86% of the mass of the Solar System. And it’s the giant planets like Jupiter and Saturn which make the most of that remaining .14% of the Solar System.

If you’d like to do the calculation yourself, here are your numbers. The volume of the Sun is 1.412 x 1018 km3. And the volume of the Earth is 1.083 x 1012 km3. So if you divide the volume of the Sun by the volume of the Earth, you get 1,300,000.

Of course, the Sun is a fairly average sized stars. There are some enormous stars out there. For example, the red giant Betelgeuse has a radius of 936 times the radius of the Sun. That gives it hundreds of millions of times more volume than the Sun.

And the largest known star is VY Canis Majoris, thought to be between 1800 and 2100 times the radius of the Sun.

We’ve written many articles about size comparisons for Universe Today. Here’s an article about the Moon compared to Earth, and here’s an article about Saturn compared to Earth.

If you’d like more info on the Sun, check out NASA’s Solar System Exploration Guide on the Sun, and here’s a link to the SOHO mission homepage, which has the latest images from the Sun.

We’ve also recorded several episodes of Astronomy Cast about the Sun. Listen here, Episode 30: The Sun, Spots and All.

Fraser Cain

Fraser Cain is the publisher of Universe Today. He's also the co-host of Astronomy Cast with Dr. Pamela Gay.

Recent Posts

Is the Underground Lake on Mars Just Volcanic Rock?

Is Mars home to an underwater lake? Different researchers are reaching different conclusions. Some say…

14 hours ago

What is Einstein’s Theory of Relativity?

More than a century after he first proposed it, Einstein's Theory of Relativity is still…

14 hours ago

The Scientific Debate Rages on: Is there Water Under Mars’ South Pole?

There's no surface water on Mars now, but there was a long time ago. If…

18 hours ago

We Already Have the Technology to Save Earth From a “Don’t Look Up” Comet or Asteroid

What if a 10 km (6.5 mile)-wide asteroid was on a bee-line towards Earth, with…

19 hours ago

NASA is Already Designing Hardware for a Mars Sample Return Mission

Testing is key to the success of any space mission, and the more complex the…

22 hours ago

Unistellar’s Plans for Science and Astronomy in 2022

Unistellar’s eVscope has proven its ability to do serious astronomy, with more to come in…

2 days ago