•-One
star is 1.5 magnitudes brighter than another star.
What is the equivalent intensity ratio?
•Δm = mA – mB =
-1.5 = 2.5xlog(IB/IA)
•-1.5/2.5
= -0.6 = log (IB/IA)
•10-0.6 = IB/IA = 0.251
•IA/IB = 3.98
•
•-Finally,
one star is 50 times fainter than another star.
Does it have a larger or smaller magnitude? What is the magnitude difference?
•
•LARGER
•Δm = 2.5xlog (IB/IA =
50) = 4.2
•
•