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Solar System

solar system with images facts key points and much more

Solar System

As we know The Sun is the Gas Giant and mostly made up of Hydrogen and Helium, so there are approximately (as hydrogen continuously fuses to helium) 70% of Hydrogen, 28 % of Helium and carbon, nitrogen, oxygen 1.5% and other elements like Neon, Iron, Magnesium, Silicon, Sulfur 0.5%

What is Solar System (Sormandal)?

The solar system is the combination of planets, satellites, comets, asteroids, meteoroids, Draft planets and other space objects, which revolves around the sun as well as around the planets/dwarf planets in their orbits.

The Sun

The Sun is a Star, located at the center of our solar system. Sun is the Biggest body in our solar system. Its Diameter is 13 million 92 thousand kilometers ( i.e., .109 times Earth). It is 99.86% of the total mass of the Solar System. Its rotation on its axis is Counter Clockwise. It is our primary source of energy because, in the sun, Nuclear fusion Occurs in which 4 H (Hydrogen) atom fuses to 1 He (Helium ) atom. During this process, it also releases Energy in the form of gamma rays and some other particles in the form of neutrinos. Every second in its core, the Sun fuses 620 million metric tons of hydrogen.

Gas Percentage/Atmosphere –

As we know The Sun is the Gas Giant and mostly made up of Hydrogen and Helium, so there are approximately (as hydrogen continuously fuses to helium) 70% of Hydrogen, 28 % of Helium and carbon, nitrogen, oxygen 1.5% and other elements like Neon, Iron, Magnesium, Silicon, Sulfur 0.5%

Important Key points/Facts –

  • Sun is a Star.
  • Its Diameter is 13 million 92 thousand kilometers ( i.e., .109 times Earth)
  • Hydrogen – 70%, Helium – 28%, 2% Other gases.
  • Nuclear Fusion occurs in the Solar system in which four hydrogen atom fuses to 1 Helium atom.
  • Age – 5 million years (Approximate).
  • Sunlight reaches to Earth’s surface in 8 minutes and 0.3 seconds (i.e., 18 seconds).
  • Minimum Distance from Earth is 14.70 crore km.
  • Maximum Distance from Earth is 15.21 crore km.
  • It rotates anticlockwise about their axis in 27 days.
  • It is 99.86% of the total mass of the solar system.

The Planets

The Planet is a celestial body that revolves around the sun, maintaining its hydro-static equilibrium (nearly round/spherical shape) and has cleared its neighborhood around its orbit. Currently, there are eight planets (8) in our solar system named as Mercury (Budh in Hindi), Venus (Sukra), Earth (Prithvi), Mars (Mangal), Jupiter (Brahaspati), Saturn (Sani), Uranus (Arun) and Neptune (Varun).
The Planets are divided into two categories –
1. Inner Planets and
2. Outer Planets

1. Inner Planets

  • Mercury, Venus, Earth, and Mars comes in this category.
  • Inner Planets are also called terrestrial planets
  • They are mostly made up of rocky material
  • They are smaller in size as compared to outer planets.
  • Inner planets have fewer moons as compared to outer planets.
  • Major gases – Carbon dioxide, Nitrogen, etc

2. Outer Planets

  • Jupiter, Saturn, Uranus, and Neptune comes in this category.
  • Outer Planets are also called Jovian planets.
  • There are mostly made up of Hydrogen and Helium Gases; hence these are also called as Gas Giants (Jupiter and Saturn are called Gas
    Giants whereas Uranus and Neptune are called Ice Giants due to low temperature).
  • They are Larger as compared to Inner planets.
  • Outer planets have many moons as compared to inner planets.
  • Major gases – Hydrogen and Helium.

1. The Mercury Planet

The Mercury is the closest planet from the sun. It is also the smallest planet among all the other planets of our solar system, and hence there is no natural satellite or moon on this planet. As we already discussed above that it is an inner or terrestrial planet, so it has a solid surface means it is a rocky planet.The Mercury rotates anticlockwise/Counterclockwise (west to East) on its own axis. One Day on Mercury is equaled to 58.6 earth days and one year equaled to 88 earth days.

Important Keypoints/Facts –

  • Closest planet from the sun.
  • 1 day = 59 Earth days (58.6).
  • 1 year = 88 days.
  • Mercury is the inner/terrestrial planet.
  • Rocky planet.
  • The distance between Sun and Mercury is 0.39 AU ie. Astronomical Unit or 58 million kilometers (36 million miles).
  • Smallest Planet in our solar system.
  • Fastest revolution (one year or rotation around the sun).
  • No natural moon/satellite.

2. The Venus Planet

The Venus is the second closest planet from the sun. As we discussed in the case of mercury that Venus is the hottest planet because, it has an atmosphere, that mostly contains carbon dioxidewhich causes the greenhouse effect. Like Mercury planet, there is no any natural satellite/moonin the planet Venus. It is also an inner or terrestrial planet, so it has a solid surface means it is a rocky planet.The interesting fact about Venus is that it rotates clockwise (ie. from East to West) about its own axis.

Important Keypoints/Facts –

  • 1 day = 243 Earth days.
  • 1 year = 225 Earth days.
  • Venus is the inner/terrestrial planet.
  • Rocky planet.
  • The distance between Sun and Venus is 0.72 AU or 108 million kilometers (67 million miles).
  • Hottest planet in our solar system.
  • Slowest rotation about its own axis ie. its one day is very long (243 days) One day is greater than one year. No Natural satellite.
  • One day is greater than one year.
  • No natural moon/satellite.

3. The Earth Planet

The Earth is the Third closest planet from the sun. We are very familiar with our home planet Earth, the perfect place for life. There is one natural satellite of earth ie. Moon. The distance between Sun and Earth is called one Astronomical Unit and it is approximately equal to 150 million Km (93 million miles). The closest planet from the Earth is Venus which is also called the sister of Earth or Twins. Most of the planet is cover with water and hence also called the Blue Planet. Its tilt on its own axis is 23.5 degree.Gas Percentage/Atmosphere – In our atmosphere, there is 78% (78.02) Nitrogen, 21% (20.95) Oxygen, 0.93% Argon, o.04% Carbon-dioxide and the small number of other gases.

Important Keypoints/Facts –

  • Third Closest planet from the sun.
  • 1 day = 24 hour (23h 56m 4s).
  • 1 year = 365 days (Exact – 365d 5h 48m 46s).
  • Earth is the inner/terrestrial planet.
  • Rocky planet.
  • The distance between Sun and Earth is 1 AU or 150 million kilometers (93 million miles).
  • Earth is tilted 23.5 degree in its axis.
  • Also Called Blue Planet.
  • One natural satellite – moon.

4. The Mars Planet

The Mars is the Fourth planet from the sun. It is also called The Red Planet due to the presence of iron minerals in it. The distance between Sun and Mars is 1.52 AU or 228 million Km (142 million miles). The biggest volcano of our entire solar system is presented in this planet names Olympus Mons,also the biggest mountain is presented in this planet names Nix Olympia.

Important Keypoints/Facts –

  • Fourth Closest planet from the sun.
  • 1 day = 24 hour.
  • 1 year = 687 days.
  • Mars is the inner/terrestrial planet.
  • Rocky planet.
  • The distance between Sun and Mars is 1.52 AU or 228 million kilometres (142 million miles).
  • Biggest mountain of our solar system – Olympus Mons.
  • Biggest Volcano of our solar system – Nix Olympia.
  • Two natural satellites – Phobos and Deimos.

5. The Jupiter Planet

The biggest planet in our solar system is Jupiter and is the Fifth planet from the sun. It is an outer/Jovian planet, mostly made up of hydrogen and helium, hence also called Gas Giant. The distance between Sun and Jupiter is 5.2 AU or 778 million Km (484 million miles). The red spot on this planet is actually a storm which is approximately the size of Earth. Here one day is equal to 10 hours that means it is the fastest rotating planet about their own axis, hence one day on Jupiter is very small as compared to other planets. One year on Jupiter is equaled to 12 earth years. Currently, it has 69 natural satellites out of which Ganymede is the biggest satellite of this planet and also the biggest satellite of our solar system. Currently, the Juno spacecraft or artificial satellite is orbiting Jupiter. It also has a faint ring system.

Important Keypoints/Facts –

  • Biggest Planet of our solar system.
  • The Great Red Spot is a Storm on Jupiter.
  • Fifth planet from the sun.
  • 1 day = 10 hours ( 9h 55 min.)
  • 1 year = 12 years (4,333 Earth Days).
  • Jupiter is the Outer/Jovian planet.
  • Gas Giant.
  • The distance between Sun and Jupiter is 5.2 AU or 778 million Km (484 million miles).

6. The Saturn Planet

The Second biggest planet in our solar system is Saturn and is the Sixth planet from the sun. It is an outer/Jovian planet, mostly made up of hydrogen and helium, hence also called Gas Giant. Whenever we hear Saturn then one picture in our mind comes that, the planet with rings – Saturn has a strong ring system made-up of seven rings. The distance between Sun and Saturn is 9.5 AU or 1.4 billion Km (886 million miles). Here one day is equal to 10.7 hours that means it is the second fastest rotating planet about their own axis, and one year is equal to 29 earth years (10,756 days). Currently, it has 62 natural satellites out of which Titan is the biggest satellite of this planet.

Important Keypoints/Facts –

  • Second Biggest Planet.
  • Strong ring system.
  • Sixth planet from the sun.
  • 1 day = 10.7 hours.
  • 1 year = 29 years (10,756 Earth Days).
  • Saturn is the Outer/Jovian planet.
  • Gas Giant.
  • The distance between Sun and Saturn is 9.5 AU or 1.4 billion Km (886 million miles).

7. The Uranus Planet

The third biggest planet in our solar system is Uranus and is the seventh planet from the sun. It is an outer/Jovian planet, mostly made up of hydrogen and helium, and due to the excess amount of methane (CH4), it is also called the green planet. Due to very far from the sun, the temperature on the last two planets (Uranus and Neptune) are very low hence, they are also called as Ice Giants. Remember one thing that Uranus is the coldest planet in our solar system. ( Highest temperature fall is recorded on this planet ) The distance between Sun and Uranus is 19.19 AU or 2.9 billion Km (1.8 billion miles). Here one day is equal to 17 hours and one year equals to 84 earth years ( 30,687 ). Currently, it has 27 natural satellites out of which Titania is the biggest satellite of this planet. Voyager 2 is the only spacecraft visited the Uranus.

Important Keypoints/Facts –

  • Third Biggest Planet.
  • Green Planet (Due to methane).
  • Seventh planet from the sun.
  • 1 day = 17 hours.
  • 1 year = 84 years (30,687 Earth Days).
  • Uranus is the Outer/Jovian planet.
  • Coldest Planet (Note- Maximum temperature fall is recorded on this planet and not in Neptune).
  • Ice Giant.
  • The distance between Sun and Uranus is 19.19 AU or 2.9 billion Km (1.8 billion miles).

8. The Neptune Planet

The fourth biggest planet in our solar system is Neptune and is the Eighth planet from the sun. It is an outer/Jovian planet, mostly made up of hydrogen and helium, and methane is present in its atmosphere. It is the farthest planet from the sun in our solar system. The distance between Sun and Neptune is 30.1 AU or 4.5 billion Km (2.7 billion miles). Currently, it has 14 natural satellites out of which Triton is the biggest satellite of this planet. It also has a faint ring system. Voyager 2 spacecraft has visited this planet.

Important Keypoints/Facts –

  • Fourth Biggest Planet.
  • Ice Giant.
  • Eighth planet from the sun (Farthest).
  • 1 day = 16 hour.
  • 1 year = 165 years (60,190 Earth Days).
  • Neptune is the Outer/Jovian planet.
  • The distance between Sun and Neptune is 30 AU or 4.5 billion Km (2.7 billion miles).

What do you think?

Written by BGK_Admin

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