Sirius is the brightest star in the night sky. You watch it set behind the western horizon about 2 A.M. in the middle of February. About what time will it set in the middle of March?

Question

Quizplus · Accepted Answer

The position of stars in the sky changes throughout the year due to Earth's orbit around the sun. Sirius will appear to move further west in the night sky as the month progresses. Therefore, it will set earlier each night. In the middle of March, it will set approximately two hours earlier than it did in the middle of February. Since it set at 2 A.M. in February, it will set at midnight in March.

Sirius Is the Brightest Star in the Night Sky