1.

A star rises at 8 pm. tonight. At what time will it rise after a month? Why?

Answer»

1. Stars rise and set 4 minutes earlier every day. If star rises at 8 pm tonight, it will rise at 7:56 pm tomorrow.

2. It will rise at 5:24 pm after a month.

3. The sun and the moon are seen to move from the west to the east against the background of stars.

4. The sun moves through one degree every day and the moon through 12 to 13 degrees.

5. This happens due to the motion of the earth around the sun and the moon around the earth which affects the duration of the stars and shortens its time period.


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