Question

What name is given to the path of a planet around the sun?
1. Route
2. Milky Way
3. Cosmic highway
4. Orbit

Answer 1

Correct Answer - Option 4 : Orbit

The correct answer is Orbit.

• An orbit is the path of a planet around the sun.

• Kepler's Law of Planetary Motion states that planets revolve in an elliptical orbit.
• Kepler’s Laws of Planetary Motion:
  • All planets move around the sun in elliptical orbits, with the sun being at rest at one focus of the orbit.
  • The position vector of the planet with the sun at the origin sweeps out equal area in equal time.
  • The square of the period of revolution of a planet around the sun is directly proportional to the cube of the main distance of the planet from the sun.

• Our galaxy is called the Milky Way (or the Akashganga) and it contains about 300 billion stars and one of these is our sun.
  • Planets and other objects go round the sun and make up the solar system with the sun at the center. 
  • Milky Way Galaxy was formed 5 billion years after the Big Bang.