Most huge objects in orbit around the Sun are situated near the plane of the orbit of the Earth, called the ecliptic. The planets are so near to the ecliptic while comets and Kuiper-belt objects are regularly at considerably greater angles to it.
All the planets and many other objects orbit the Sun in a similar direction which the Sun is rotating (counter-clockwise, as viewed from above the North Pole of the Earth).There are exceptions, such as Comet of Halley.
The general structure of the charted locations of the Solar System comprises of the Sun, 4 moderately tiny inner planets surrounded by a belt of mainly rocky asteroids, and 4 giant planets surrounded by a Kuiper belt of majorly icy objects.
Astronomers at times informally divide this structure into different regions. The inner Solar System includes the 4 terrestrial planets and an asteroid belt. The outer Solar System is above the asteroids, including the 4 massive planets.
Since the discovery of a Kuiper belt, the outermost regions of the Solar System are regarded a unique region comprising of the objects above Neptune.
Majority of the planets in the Solar System have secondary systems of their own, being orbited by other planetary objects known as moons, or natural satellites (2 of which are bigger than the planet Mercury), and, in the case of the 4 huge planets, by planetary rings, thin bands of small particles which orbit them in unison.
Many of the biggest natural satellites are always in synchronous rotation, with one face always turned toward their parent.
The huge majority of the Solar System comprises of a near-vacuum called the interplanetary medium. The Sun, along with light, radiates a constant stream of charged particles ( plasma) called the solar wind.
This stream of particles often spreads outwards at approximately 1.5 million kilometers per hour, developing a tenuous atmosphere which permeates an interplanetary medium out to at least 100 AU.
Activity on a surface of the Sun, like coronal mass ejections and solar flares, disturb the heliosphere, developing space weather and even causing geomagnetic storms.
The biggest structure within heliosphere is a heliospheric current sheet, a spiral form developed by the actions of the rotating magnetic field of the Sun on the interplanetary medium.
Many years ago, most of the people thought the stars ruled our destiny. However, we can see science at work on the planets, comets and asteroids close to home today.
The formation of the solar system occurred approximately 4.6 billion years ago, and it encompasses the Sun, the 8 planets, dwarf planets and smaller astronomical objects bound in its orbit.
It was formed as a result of the collapse of a huge molecular cloud, the mass at the center collecting to form the Sun and a flat disk of dust around.The planets and other bodies astronomical bodies would eventually be formed from this disk. This is a theory which scientists firmly believe. Let’s not judge how this was proven!
Some time back, several people believed that the Earth was the center of the universe and didn’t consider the existence of the solar system. Nicolaus Copernicus was the first person to give a suggestion that the sun was indeed the center of the solar system and not the earth. The invention of telescope led to the discovery of other planets and the Moon, which couldn’t be seen with naked eye. Therefore, let’s take a look at the Solar System. What can we learn from it?
Interesting Solar System Facts
1. There is an asteroid belt that lies between the orbits or Jupiter and Mars; it has a huge number of irregular-shaped asteroids.
2. 99.86% of the mass of the solar system is contained in the sun while the remaining amount is made up of the 8 planets.
3. There is an asteroid known as 243 Ida, which has its moon.
4. Saturn isn’t the only planet with rings. Even though most of us were taught in school that Saturn had wonderful rings, made up of ice, small rocks, and other particles, there are really many other planets which also have rings around them. Actually, all of the larger planets in the solar system have been discovered to have rings.
5. The gas planets are the 4 farthest from the sun while the rock planets are the 4 nearest to the sun.
6. Comets in our solar stem consist of ice and rocks, and they are sometimes called dirty snowballs.
7. In 2012, the Voyager 1 of NASA is believed to have reached the transition zone that leads to the outer limit of the solar system.
8. The region of the solar system beyond Neptune hasn’t been explored much and referred to as the ‘trans-Neptunian region’.
9. The 4 rocky terrestrial planets have few or no moons. Mercury and Venus have none. Earth has one. Mars has 2 small moons (also known as satellites).
10. The solar system will remain as it is today until the hydrogen of the sun is all used up in approximately five billion years.