Question

On December 1 at 10 P.M., the bright star Procyon will just be rising on the eastern horizon. At approximately what time would you see this star rising on Christmas Day (24 days later)?

Answer 1

8 : 24 P.M

Explanation:

Data provided in the question:

On December 1 bright star Procyon will just be rising on the eastern horizon at 10 P.M

Now,

we know that Stars rise 4 minutes earlier each night

Therefore,

24 days later i.e after 24 nights the total early time

= 24 days × 4 minutes per day

= 96 minutes

or

= 1 hour 36 minutes early

Hence,

on Christmas Day the star will rise at 1 hour 36 minutes early than 10 P.M

= 8 : 24 P.M