What is North Star?

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Recently, the Vice President of India said Parliament is the “North Star” of democracy.

About North Star:

  • The North Star is also known as Pole Star.
  • It is a very bright star — around 2,500 times more luminous than the Sun.
  • It is part of the constellation Ursa Minor and is around 323 light years away from the Earth.
  • The Northstar is less than 1° away from the north celestial pole, almost in direct line with the Earth’s rotational axis.
  • It appears to sit motionless in the northern sky, with all the other stars appearing to rotate around it.
  • Its position and brightness have allowed humans to use it for navigation since late antiquity. 
  • The elevation of the star above the horizon gives the approximate latitude of the observer. 
  • Upon crossing the equator to the south, however, the North Star is lost over the horizon and hence stops being a useful navigational aid.

What is Ursa Minor?

  • It is one of the 48 constellations identified by the Greek astronomer Ptolemy in the second century.
  • It is also called the Little Bear.


Q1) What is a Latitude?

Latitude is a measurement on a globe or map of location north or south of the Equator. 

Source: This Word Means: North star