Question

Every night for a week, a student observes the night sky for three hours as part of a school experiment. The student notes that while the pattern of the stars remains the same, the stars seem to move across the sky each night. Which of these best explains the student's observation?

Group of answer choices

Answer 1

The student's observation about the position of stars is due to rotation of earth.

Step-by-step explanation:

• As we know that earth rotates around the sun and makes one complete rotation in 24 hours ( completing a day).
• So the position and pattern of star always remains same, but it seems that star is moving across the sky because of our movement i.e earth's movement.
• The position of star differs every time as the position of observer is also changing constantly and unknowingly.