The Planet Saturn – Planets In Our Solar System

Planet Saturn

The Planet Saturn - Planets In Our Solar SystemSaturn from the sun is the sixth planet and is renowned for its rings. Initially, Galileo thought it had three parts, unknowing the fact that the planet Saturn was a planet with rings. After 40 years, it came to light that the rings were made of rock and ice. This is a gaseous plant comprising of helium and hydrogen.

  • Orbit:5 Earth years
  • Diameter:74,900 miles (120,500 km)
  • Day:About 10.5 Earth hours

The Planet Saturn in the solar system is the second largest planet. Saturn acquired the Roman name for Cronus, as in Greek mythology as the lord of the Titans. Saturn is an English root word “Saturday.”

From Earth, Saturn is the farthest planet and is visible to the naked eye, but only through a telescope, the rings of this plant can be seen.  Jupiter, Neptune and Uranus also have rings, but of course, the Saturn rings are most extraordinary.

Saturn is a gas giant comprising of hydrogen and helium. It is immense to hold over 760 Earth’s and is massive than other planet but for Jupiter, approximately 95 times the mass of the Earth. Conversely, Saturn has the least density of other planets and is less dense than water.

Saturn’s Atmosphere

The atmosphere of Saturn has gold and yellow bands and is the result due to upper atmosphere super-fast winds that reach around its equator up to 1100 mph (1800km/h) in combination with heat from the interior of the planet.

Saturn completes one rotation in every 10-and-a-half hours. This spinning causes the bulge to Saturn at its equator and at its poles it appears flat. The planet is wider by 8,000 miles (13,000 kilometres) at its equator than the poles. Saturn has northern and southern lights and this is due to sun particles.

The atmospheric composition comprises of molecular hydrogen of 96.3 %, helium of 3.25% and small amounts of ethane, ammonia, methane, water ice aerosols, hydrogen deuteride, ammonia ice aerosols and ammonia hydrosulfide aerosols.

The magnetic field of the planet Saturn is nearly 578 times powerful than the Earth’s. Saturn has a robust rocky and iron material enveloped in the outer core and this is composed of methane, ammonia and water.  The next layer features liquid metallic hydrogen in a compressed state with viscous hydrogen and helium. The helium and hydrogen become gaseous near the surface of the planet and merges with the atmosphere.

Saturn has nearly 62 moons and most moons are named after Titans, their descendants, Gallic, Inuit and Norse myths.  These moons exhibit bizarre features.  Though it is identified to have many moons, this system has more small moons being created and destroyed constantly.

Planets In Our Solar System

Planets In Our Solar System

Planets In Our Solar System - (Planets In Our Solar System)Planets in Our Solar System, A solar system is essentially a star and the objects that orbit around it. Our solar system consists of the Sun in the centre around which eight planets, a dwarf planet and some asteroids revolve. Our solar system is in an outward portion of the Milky Way galaxy. Let’s have a look at the planets in our solar system.

The planets in our solar system were discovered after astronomers followed moving points of light among the stars. Mercury, Venus, Jupiter, Mars and Saturn were discovered in a similar manner, while Neptune, Uranus, Pluto, the Asteroid Belt and the moons of many planets were observed only after the telescope was invented. The discovery of the dwarf planet Eris led to the discovery of other dwarf planets. Several space probes were sent out in space to further explore the solar system and are being continued today.

Solar System theorised

The solar system is theorised to have originated from a giant rotating cloud of dust and gas known as the solar nebula. This nebula collapsed due to its gravity. It spun faster and was flattened to a disc. Most of the material from this nebula moved towards the centre and formed the sun. Other particles collided and stuck together to form planetesimals (objects that are the size of asteroids). Some of these planetesimals combined to form comets, asteroids, moons and planets. The solar winds were very powerful and swept away lighter elements such as helium and hydrogen from the inner planets. The solar winds were much weaker in the outer planets and hence, they are predominantly made of helium and hydrogen.

Planets in our Solar System

In the order of their distance from the Sun, the planets in our solar system are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune. In the year 2006, The International Astronomical Union classified Pluto as a dwarf planet and it is effective, not included in this list. Apart from the planets, it also includes meteorites, comets, asteroids, a disc-shaped Kuiper Belt, a spherical Ort Cloud and a heliopause that is shaped like a teardrop. The solar system is estimated to stretch for a distance of 9 billion miles.

Planet Nine

Evidence for a new planet nicknamed “Planet x / Planet 9“was unveiled in 2016 bringing the number of planets in the solar system back to nine. It is estimated to have a mass that is 5,000 times that of Pluto and 10 times that of Earth. This planet x (video) is believed to exist between Neptune and Pluto. In any case, Pluto is the farthest object in our solar system orbiting in an elliptical and completely tilted axis.

The sun lies at the centre of our solar system and is by far, the largest object in it. It contains around 99.8% of the mass in the entire solar system. It provides light and heat without which life on Earth would stop. Most of the other objects in the solar system orbit in oval-shaped paths, with the sun slightly off centre from their paths.

Kinds of Planets

The planets in our solar system are of two kinds. The first kind is Terrestrial planets or planter whose surfaces are rocky. This includes Mercury, Venus, Earth and Mars. The other four are called Jovian planters because they are huge in comparison to the terrestrial planets and more importantly, are gaseous in nature. Jupiter and Saturn are basically called gas planets while Uranus and Neptune have more ice. A common feature is that all four planets contain helium and hydrogen.

Pluto also has solid rocky surfaces. But since it has been classified as a dwarf planet, it falls out of this list. The IAU defines a planet that can circle the sun without being the satellite of any other object while being large enough so that it can be rounded (by its own gravity) and must ‘clear the neighbourhood’ of other orbiting objects. The problem with Pluto is its small size and its odd orbit when compared with the other planets in our solar system. Most importantly, Pluto’s orbit shares space with other object belonging to the Kuiper Belt that lies beyond Neptune. Other dwarf planets are Eris, Makemake, Sedna and Haumea from the Kuiper Belt and Ceres from the Asteroid Belt that lies between Jupiter and Mars.

Comets

Comets are comprised of primarily rock and ice. They follow very long orbits that bring them closer to the sun at certain points. Some short-period comets are thought to originate from the Kuiper belt and complete their orbits within 200 years. Long period comets take more than 200 years to complete their orbits and they are believed to have originated from the Oort Cloud. When comets come very close to the sun, some of the ice in their central nucleus evaporates into gas which is carried outward, giving it a characteristic ‘tail’.

The Kuiper belt is long suspected to exist beyond Neptune and is estimated to house more than a trillion comets and some hundreds of thousands of icy bodies.  Beyond this lie the Oort Cloud, Heliosphere and Heliopause.