1. What is the name of the star which is almost directly above the north pole of the Earth? Draw a diagram to illustrate how an observer in the northern hemisphere can locate this star.

Question

Geography

Addisyn

29 February, 17:47

1. What is the name of the star which is almost directly above the north pole of the Earth? Draw a diagram to illustrate how an observer in the northern hemisphere can locate this star.

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Answers (1)

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Kelly Weeks · Answer 1

Polaris is a north pole star

Explanation:

It is the brightest star of the northern hemisphere, in the constellation of Ursa minor, being about 433 light-years. Its a triple star system with Polaris Aa, Ab and B star. Due to Polaris stars, it lies in direct line with rotation of the earth on its axis above the celestial north pole. The temperature on the Polaris varies with a small amount of pulsation which is variable and unpredictable the temperature cycle can go from 50K to at least 170 K. It remains steady for 4 days.