![]() Neptune is the densest giant planet but has a low density compared to all terrestrial planets. It is bigger than planet Neptune in size but due to its lower density, the mass of this planet is comparatively low. Uranus is the 2nd least dense planet of our solar system after Saturn. So, Planet Saturn can float on water because of its lower density than water. The density of Saturn is just 0.687 gm/cm 3, which is less than the density of water (1 gm/cm 3). Saturn is the least dense planet in our solar system. It is the largest planet but made of gases, so the density of this planet is lower. Planet Jupiter is the 2nd densest giant-planet after Neptune. Its atmosphere density is also lower, and the highest atmospheric density on Mars is almost the same as that found 32 km above the earth’s surface. Though it has more density in comparison to giant planets. Mars is the least dense terrestrial planet. So the mean density of the earth is 5.514 gm/cm 3. The Crust density is almost 2.5-3.0 gm/cm 3, for Mantle 3.0-3.5 gm/cm 3, and the inner core density is approximate 13 gm/cm 3. Our Earth is the densest planet in the solar system. Though it has one of the densest atmospheres with around 92 times of the earth. Venus is the third densest in the solar system planets. (Gravitational Compression – is a phenomenon in which gravity compresses the object and increases its density while reducing the object’s size.) Without considering gravitational compression the Mercury’s density would be 5.3 gm/cm 3 while the earth’s density would be around 4.4 gm/cm 3. If we do not consider gravitational compression for both planets then Mercury would be denser than earth. Mercury is the second densest planet of our solar system after the Earth (5.514 gm/cm 3). The density of water is almost 1 gm/cm 3 or 997 kg/m 3. The average density of planets in order are:- Earth, Mercury, Venus, Mars, Neptune, Jupiter, Uranus, and Saturn.įor reference (1 gm/cm 3 = 1000 kg/m 3). The mentioned density is in the unit of Grams per Cubic Centimeters (gm/cm 3). The Density of Planetsīelow, you can check the density of all eight planets. So, here in one of our articles, we have explained: “ how do scientists measure the mass of a planet”. Such as, which planet is the densest, or least dense planet, or the planet less dense than water, or which planet can float on water, etc.Īs we have mentioned, we need to know the Mass and Volume to determine Planets Density. You may find some other facts related to the highest, lowest, and average density of any particular planet.īut, here you can also find some interesting facts about the density of planets. ![]() So, here we have mentioned, the average or mean density of all planets. In this way, the density of all planets is different throughout their depth (radius). Such as, the Earth has 3 layers, Crust, Mantle, and Core. It means, most of the planets have layers and the density of all layers would be different. One of the facts about Planets Density is, it is variable throughout its radius.
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