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Why pole star is always seen at the one point in the sky?
- a)Pole star rotates with the same period of the Earth.
- b)Pole star is opposite to the Sun from Earth.
- c)This is one another star from our galaxy.
- d)Pole star lies in the axis of spin of the Earth.
Correct answer is option 'D'. Can you explain this answer?
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Most Upvoted Answer
Why pole star is always seen at the one point in the sky?a)Pole star r...
Explanation:
The reason why the pole star is always seen at the same point in the sky is because it lies in the axis of spin of the Earth. This means that it is aligned with the Earth's rotational axis, also known as the North Pole. Here's a detailed explanation:
Earth's Axis of Rotation:
- The Earth rotates around an imaginary line called its axis of rotation.
- The axis of rotation is an imaginary line that passes through the North Pole and the South Pole.
- This axis is tilted at an angle of about 23.5 degrees with respect to the plane of the Earth's orbit around the Sun.
Pole Star:
- The pole star, also known as Polaris, is a star located very close to the Earth's rotational axis in the northern hemisphere.
- Due to its alignment with the Earth's axis of rotation, Polaris appears almost stationary in the night sky.
- It is located directly above the North Pole, and all other stars appear to revolve around it in circular paths.
- This is why the pole star is always seen at the same point in the sky, regardless of the time of night or the season.
Advantages of the Pole Star:
- The pole star has been used for navigation by different cultures throughout history.
- Its fixed position in the sky makes it a reliable reference point for determining direction.
- By observing the angle between the pole star and the horizon, sailors and travelers can determine their latitude.
Conclusion:
The pole star appears to be always seen at the same point in the sky because it lies in the axis of spin of the Earth. This alignment with the Earth's rotational axis gives it a fixed position relative to the observer on Earth, making it a valuable navigational tool and reference point for determining direction and latitude.
The reason why the pole star is always seen at the same point in the sky is because it lies in the axis of spin of the Earth. This means that it is aligned with the Earth's rotational axis, also known as the North Pole. Here's a detailed explanation:
Earth's Axis of Rotation:
- The Earth rotates around an imaginary line called its axis of rotation.
- The axis of rotation is an imaginary line that passes through the North Pole and the South Pole.
- This axis is tilted at an angle of about 23.5 degrees with respect to the plane of the Earth's orbit around the Sun.
Pole Star:
- The pole star, also known as Polaris, is a star located very close to the Earth's rotational axis in the northern hemisphere.
- Due to its alignment with the Earth's axis of rotation, Polaris appears almost stationary in the night sky.
- It is located directly above the North Pole, and all other stars appear to revolve around it in circular paths.
- This is why the pole star is always seen at the same point in the sky, regardless of the time of night or the season.
Advantages of the Pole Star:
- The pole star has been used for navigation by different cultures throughout history.
- Its fixed position in the sky makes it a reliable reference point for determining direction.
- By observing the angle between the pole star and the horizon, sailors and travelers can determine their latitude.
Conclusion:
The pole star appears to be always seen at the same point in the sky because it lies in the axis of spin of the Earth. This alignment with the Earth's rotational axis gives it a fixed position relative to the observer on Earth, making it a valuable navigational tool and reference point for determining direction and latitude.
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Why pole star is always seen at the one point in the sky?a)Pole star rotates with the same period of the Earth.b)Pole star is opposite to the Sun from Earth.c)This is one another star from our galaxy.d)Pole star lies in the axis of spin of the Earth.Correct answer is option 'D'. Can you explain this answer?
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Why pole star is always seen at the one point in the sky?a)Pole star rotates with the same period of the Earth.b)Pole star is opposite to the Sun from Earth.c)This is one another star from our galaxy.d)Pole star lies in the axis of spin of the Earth.Correct answer is option 'D'. Can you explain this answer? for Class 7 2024 is part of Class 7 preparation. The Question and answers have been prepared according to the Class 7 exam syllabus. Information about Why pole star is always seen at the one point in the sky?a)Pole star rotates with the same period of the Earth.b)Pole star is opposite to the Sun from Earth.c)This is one another star from our galaxy.d)Pole star lies in the axis of spin of the Earth.Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for Class 7 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Why pole star is always seen at the one point in the sky?a)Pole star rotates with the same period of the Earth.b)Pole star is opposite to the Sun from Earth.c)This is one another star from our galaxy.d)Pole star lies in the axis of spin of the Earth.Correct answer is option 'D'. Can you explain this answer?.
Why pole star is always seen at the one point in the sky?a)Pole star rotates with the same period of the Earth.b)Pole star is opposite to the Sun from Earth.c)This is one another star from our galaxy.d)Pole star lies in the axis of spin of the Earth.Correct answer is option 'D'. Can you explain this answer? for Class 7 2024 is part of Class 7 preparation. The Question and answers have been prepared according to the Class 7 exam syllabus. Information about Why pole star is always seen at the one point in the sky?a)Pole star rotates with the same period of the Earth.b)Pole star is opposite to the Sun from Earth.c)This is one another star from our galaxy.d)Pole star lies in the axis of spin of the Earth.Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for Class 7 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Why pole star is always seen at the one point in the sky?a)Pole star rotates with the same period of the Earth.b)Pole star is opposite to the Sun from Earth.c)This is one another star from our galaxy.d)Pole star lies in the axis of spin of the Earth.Correct answer is option 'D'. Can you explain this answer?.
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