In Comparing First Magnitude Deneb with Second Magnitude Polaris, We

question 86

Multiple Choice

In comparing first magnitude Deneb with second magnitude Polaris, we find that:

• A)Polaris is in reality much more luminous.
• B)Deneb must be much hotter than Polaris.
• C)Deneb appears 2.5 times brighter to us than does Polaris.
• D)Polaris is really 100 times brighter than nearby Deneb.
• E)Deneb is really much closer than Polaris.