Thus, it would take more than 200 million Pluto-sized planets to fill the Sun.īut if we are going to talk small, let’s talk about our Moon. It’s not quite a massive planet, since it has only 0.01 Earth masses or just 1% of our Earth’s mass. Pluto has a diameter of around 2.376 km / 1.476 mi and a radius of around 1,188 km / 738 mi. Pluto is the ninth-largest planet in the Solar System, and though many don’t regard it as a planet anymore, we figured it deserves a spot here regardless. Let’s talk about a planet that no longer fits in, yes, the dwarf planet Pluto. You can fit around more than 1,800 Neptune-sized planets inside the Sun. The mass of Neptun is equivalent to 17.15 Earth masses. Neptune is the fourth-largest planet in the Solar System, having a diameter of 49.244 km / 30.598 mi, and a radius of 24.764 km / 15.387 mi. Things differ a bit when it comes to Neptune. It would take around 22.000 Uranus-sized planets to fill the Sun.
Uranus is reasonably massive, with its mass being equivalent to 14.54 Earth masses.
Uranus has a diameter of around 51.118 km / 31.763 mi and a radius of 25.362 km / 15.759 mi. Let’s start with Uranus, which is the third-largest planet in the Solar System. The icy giants, Uranus and Neptune, are a bit similar in size and mass but lets how they fare against the Sun. It would take more than 1,700 Saturn-sized planets to fill the Sun. It is quite massive as well, having the equivalent of 95.16 Earth masses. Saturn has a diameter of approximately 120.536 km / 74.897 mi and a radius of around 58.232 km / 36.183 mi. When it comes to Saturn, which is the second-largest planet in our Solar System, things start to change. Jupiter might seem impressive in these regards, but it would only take around 1.000 Jupiter-sized planets to fill the Sun. You could fit 1.300 Earths inside Jupiter. It has a mean radius of 69.911 km / 43.440 mi, and its mass is equivalent to 318 Earth masses. Jupiter has a diameter of around 142.984 km / 88.846 mi at the equator, and a diameter of about 133.708 km / 83.082 mi at the poles. Jupiter is the biggest planet in our Solar System but pales when compared in size to the Sun and any other aspects. Moving on to the great gas giants, Jupiter and Saturn, the numbers start to go down or up in other cases. It would take around 7 million Mars-sized planets to fill the Sun. Mars has only 11% of our Earth’s mass or 0.11 Earth masses. Mars is the second-smallest planet in the Solar System, having a diameter of only 6.779 km / 4.212 mi (30% bigger than Mercury), and a radius of 3.389 km / 2.105 mi. When comparing Venus to the Sun, it starts to shrink drastically, as you could fit 1.5 million Venus-sized planets inside the Sun, if it were hallowed. The mass of Venus is equivalent to 0.9 Earth masses, or 90% of our Earth’s mass. Venus is the sixth-largest planet from the Sun, having a diameter of 12.104 km / 7.521 mi, and a radius of around 6.051 km / 3.760 mi. When it comes to Venus, things get a bit different. It would take around more than 21.2 million Mercury-sized planets to fit inside the Sun. Mercury is the smallest planet in our Solar System, having a diameter of only 4.879 km / 3.032 mi, and a radius of 2.439 km / 1.516 mi, and only 0.055 Earth masses. However, how do the other planets fare in these comparisons? Let’s find out! Mercury, Venus, and Mars All the planets in our Solar System combined account for just 0.2% of the Sun’s mass. The Sun has a radius of 696.340 km / 432.685 mi and a diameter of 1.39 million km / 864.000 mi.Įarth, for comparison, has a radius of only 2.439 km / 1.516 mi, and a diameter of just 12.742 km / 7.917 mi. More than one million Earths could fit inside the Sun if it were hollow. With that being said, how many Earths can fit inside the Sun? Jupiter, the largest planet in our Solar System, has 318 Earth masses, while Mercury, the smallest planet, has only 0.055 Earth Masses. Compared to Earth, which has a mass of around 5.9 quadrillion kg, the Sun is 330.000 times more massive than our little home planet. Our Sun is the biggest celestial object in the Solar System, containing 99.8% of all the Solar System’s mass.
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