Triton.
Hydrogen and Helium
Large Gravity = large Mass
The Terrestrial planets have a higher density. Their structure includes a large percentage of rock, while the Jovian planets are composed mostly of gas.
Dependant on how the debris from supernovae is moving, the proportions of certain materials present, and the initial conditions of solar systems forming different combinations of terrestrial and Jovian planets are formed. Terrestrial planets are comprised of heavier particles (ie. of higher relative atomic mass) meaning they have stronger gravity which leads to higher density planets than the gaseous Jovian planets. A Jovian planet can be thought of as a failed star - it has all the elements needed to fuel nuclear fusion, but not enough gravity to attain the nuclear activation energy required. So the Sun started as a large cloud mostly comprising of gases, and terrestrial planets were formed from clouds mostly consisting of heavy solids.
No, they are less dense as the majority of their volume is composed of very light hydrogen gas. A jovian planet may have a core that is denser than that of a terrestrial planet but, as this is dense, it is not all that large. The hydrogen atmosphere is very large and therefore anti-dense (if you know what I mean). The lightness therefore dominates.
Jupiter.
Large, yes. High density, no.
The main difference is size. Jovian planets are very large and terrestrial planets aren't. Jovian planets are also made of gas and terrestrials are made of rocks.
The 4 Jovian planets are Jupiter, Saturn, Uranus and Neptune. They are all larger than any of the other planets.
They are very large, and consist of mostly gases.
Hydrogen and Helium
Large Gravity = large Mass
The Terrestrial planets have a higher density. Their structure includes a large percentage of rock, while the Jovian planets are composed mostly of gas.
It is believed planets form via accretion. However, due to the large size of Jovian planets, there would not be enough time for these to form via accretion. This presents the â??Jovian Problemâ?? which contends that since these type planets abound in planetary systems, there may be another way in which these planets may form.
They are the four large moons, discovered by Galileo, that go round Jupiter.
Large Moons of the Jovian planets. Enjoy.
Dependant on how the debris from supernovae is moving, the proportions of certain materials present, and the initial conditions of solar systems forming different combinations of terrestrial and Jovian planets are formed. Terrestrial planets are comprised of heavier particles (ie. of higher relative atomic mass) meaning they have stronger gravity which leads to higher density planets than the gaseous Jovian planets. A Jovian planet can be thought of as a failed star - it has all the elements needed to fuel nuclear fusion, but not enough gravity to attain the nuclear activation energy required. So the Sun started as a large cloud mostly comprising of gases, and terrestrial planets were formed from clouds mostly consisting of heavy solids.