How big are the moons
in our solar system?

What is a light year?

Compare Planet and Star Sizes

Here are the small solid planets.
Notice haw small Mars and Mercury are compared to the Earth.

Now we add the gas giants, Jupiter Saturn Uranus and Neptune.
Notice haw big Jupiter is compares to the rest.

Now we add the sun.
Suddenly Jupiter does not seem very big.

Now we add the some larger stars.
Compared to Arcturus, our Sun does not seem very big.

Now we add the some even larger stars.
Compared to Antares, our Arcturus does not seem very big.