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Saturn has a diameter of approximately 120.536 km / 74.897 mi and a radius of around 58.232 km / 36.183 mi. It is quite massive as well, having the equivalent of 95.16 Earth masses. It would take more than 1,700 Saturn -sized planets to fill the Sun.
And just for fun, let’s see how many of all the planets in the Solar System fit into Jupiter: Saturn — 1.73, or 1 whole Saturn. Uranus — 20.94, or 15 with sphere packing. Neptune — 22.89, or 16 with sphere packing.
More than 1,300 Earths would fit inside Jupiter. Jupiter is the fifth planet from the sun.
It’s often hard to fully grasp just how big the planets in the solar system are. 1.3 million Earths could fit in the Sun, but that is hard to picture.
About 7.5477×1010 earths can fit in VY Canis Majoris.
A: The biggest star size-wise is VY Canis Majoris, which is about 2,000 times wider than our sun. You can fit 9.3 billion of our suns into VY Canis Majoris. This star is about 4,900 light years from Earth and is found in the constellation Canis Major.
Smallest. Mercury is the smallest planet in our solar system —only slightly larger than Earth’s Moon.
Jupiter is often called a ‘failed star ‘ because, although it is mostly hydrogen like most normal stars, it is not massive enough to commence thermonuclear reactions in its core and thus become a ‘real star ‘.
The smallest planet in regards to both mass and volume is Mercury — at 4,879 km across and 3.3010 x 1023 kg, this tiny world is nearly 20 times less massive than Earth, and its diameter is about 2½ times smaller. In fact, Mercury is closer in size to our Moon than to Earth.
On November 4, 2013, astronomers reported, based on Kepler space mission data, that there could be as many as 40 billion Earth-sized planets orbiting in the habitable zones of Sun-like stars and red dwarf stars within the Milky Way Galaxy. The nearest such planet may be 12 light-years away.
The radius of Mars is 3,389.5 km, which is just over half that of the Earth’s: 6,371 km. If you assume they’re both perfect spheres, this means that you can actually fit about 7 Mars’s inside Earth!
Jupiter is made of mostly hydrogen and helium gas. So, trying to land on it would be like trying to land on a cloud here on Earth. There’s no outer crust to break your fall on Jupiter. Just an endless stretch of atmosphere.
Size and Distance The Moon is an average of 238,855 miles ( 384,400 kilometers) away. That means 30 Earth-sized planets could fit in between Earth and the Moon.
That’s an enormous number, so once again, for comparison, that’s 57.7 times the volume of Earth. You could fit 57 Earths inside Neptune with room to spare. The surface area of Neptune is 7.64 x 109 km2.