Question

The table below shows the right ascensions of two stars at a location.

Star 1 - 4 right ascension (in Hour)
Star 2 - 3 right ascension (in Hour)
Which of these statements is correct about the stars?

1) star 1 will rise 1 hour before star 2
2) star 1 will rise three hours before star 2
3) star 1 will cross the meridian four hours before star 2
4) star 1 will cross the meridian seven hours before star 2

Answer 1

Star 1 - 4 hours right ascension
Star 2 - 3 hours right ascension
Subtracting hours right ascension
4 hours right ascension - 3 hours right ascension = 1 hours right ascension.
Thus,
1) star 1 will rise 1 hour before star 2