What are the four Jovian planets and what are their characteristics ?

The four Jovian planets, also known as the gas giants, are the largest planets in our solar system. They are Jupiter, Saturn, Uranus, and Neptune. Here are their characteristics:

Jupiter:

Jupiter is the largest planet in our solar system, with a mass more than two and a half times that of all the other planets combined.
It is known for its distinctive bands of clouds, including the Great Red Spot, a massive storm that has been observed for over 300 years.
Jupiter has a strong magnetic field and numerous moons, including the four Galilean moons: Io, Europa, Ganymede, and Callisto.
It is composed mostly of hydrogen and helium, with a small rocky core at its center.
Saturn:

Saturn is the second-largest planet and is well-known for its prominent ring system made up of icy particles and debris.
It has a similar composition to Jupiter, with mostly hydrogen and helium. Saturn also possesses a solid core.
Saturn's rings are made up of countless individual ringlets that are separated by gaps. The rings are composed mainly of ice particles but also contain rocky material.
It has a complex system of moons, with Titan being the largest and most well-known.
Uranus:

Uranus is an ice giant, and it is unique among the Jovian planets because it rotates on its side, with its axis of rotation nearly parallel to its orbit around the Sun.
It has a blue-green color due to the presence of methane in its atmosphere, which absorbs red light and reflects blue and green light.
Uranus has a relatively small rocky core surrounded by a thick mantle of water, methane, and ammonia ices.
It also has a system of rings, though they are much fainter and less prominent than Saturn's rings. Uranus has a collection of moons, with Titania and Oberon being the largest.
Neptune:

Neptune is the farthest planet from the Sun and is also an ice giant.
It has a deep blue color due to the presence of methane in its atmosphere, similar to Uranus.
Neptune has a turbulent and dynamic atmosphere with high-speed winds and large storms, including the famous Great Dark Spot (although it has been observed to have disappeared).
Like the other gas giants, it has a rocky core, but the majority of its mass is composed of hydrogen, helium, and methane.
Neptune has a system of rings, though they are faint and difficult to observe. It has several moons, including Triton, which is notable for its retrograde orbit.
These four Jovian planets share common features such as large size, gaseous composition (mostly hydrogen and helium), and the presence of moons and/or ring systems. However, each planet also has its own distinct characteristics and unique phenomena that make them fascinating objects of study.