Home / Geography Gk / The Solar System and the Sun

The Solar System and the Sun

The Solar System and the Sun: Looking for the Solar system GK. Do you want to study the basic information about the Sun? Here are the post about the Solar System and the Sun.

The Solar System and Sun

Our Solar System

The solar system comprises the sun 8 planets, their Satellites, and other non-stellar objects, which are believed to have been developed from the condensation of gases and other bodies.

The sun is at the center of the solar system and all the planets revolve around it in an elliptical orbit.

Sun is the Nearest star to the Earth

The size of the Solar system has been estimated to at about 105

Components of the Solar System

Our Solar system consists of

  1. The Sun
  2. Eight planets and their satellites
  3. Asteroids
  4. Meteors
  5. Comets
  6. Drifting particles (InterPlanetary dust and electrically charged gases called Plasma)

solar system

Origin of the Solar System

Various theories were given to explain the Origin of the solar system
HypothesisPropounder
Gaseous Hypothesiskant
Planetesimal HypothesisChamberline and Moulton
Tidal HypothesisSir James Jeans and Harold Jeffreys
Binary star HypothesisHN Russel
Supernova HypothesisF Hoyte
Inter-stellar Dust HypothesisOtto Schmidt
Electromagnetic HypothesisH Alfven
Protoplanet HypothesisG Kuiper
Nebular Cloud HypothesisDr. Von Weizsacker

The Sun

The sun is the center of the solar system. It is made up of extremely hot gases (Hydrogen) and other lesser bodies.

Important facts or GK about Sun

  • The sun is 109 times bigger than the earth.
  • The Sun’s weighs is 2×10 27 tonnes more than earth.
  • Distance between the Sun and earth is about 150 million km.
  • The light from the Sun reaches earth in about 8 minutes 18 Second.
  • The Glowing surface of the Sun is called ‘Photosphere“.
  • The red color portion above the “Photosphere is called “Chromosphere“.
  • The last portion of the Sun is called “Corona“, which is visible during eclipses.
  • The temperature in the core of the Sun is about 15 million degrees, Kelvin.
  • The temperature of Photosphere is about 6000-degrees Celcius.
  • Newly discovered planet in our solar system is 2003 UB 313.

Also Read: Planet Names and Planet Information

Some of the Concept associated with the Sun

Solar Winds

The sun is continuously emitting streams of proton in all direction either as spiral streams called solar Wind or bouts of incandescents material called Solar Flares.

Solar flares being hot ionized gases pose danger to satellite Communication.

Aurora

The constituents particle of the solar wind is trapped by the Earth’s magnetic field and enter the Earth’s upper atmosphere as Aurora.

It is described as Aurora Borealis in the Northern hemisphere and Aurora Australis in the southern hemisphere.

Plages and Sunspots

The surface of the Sun is continuously changing. Bright spots are called Plages and dark spots are called Sunspots. The Sunspots dark regions years. These spots greatly influence the global climate.

Click here to appear to a Free GK test.

[WATU 3]

About Subhendu

I Professionally an Engineer. I love working on Web Development and Blogging. Now I am working at India Gk Group as a author. You can Contact me at [email protected]

Leave a Reply