Brightness of stars: This is a continuation for the relation ship between relative intensity of light and apparent magnitude of stars. a. The light striking Earth from Vega is 2.9 times as bright as...

Brightness of stars: This is a continuation for the relation ship between relative intensity of light and apparent magnitude of stars.

a. The light striking Earth from Vega is 2.9 times as bright as that from the star Fomalhaut. What is the apparent magnitude of Fomalhaut?

b. The star Antares has an apparent magnitude of 0.92. How does the intensity of light reaching Earth from Antares compare with that of light from Vega?

c. If the intensity of light striking Earth from one star is twice that of light from another, how do the stars’ magnitudes compare?