What is the measured parallax of stars used for? Which is brighter, magnitude 5 or magnitude 0? What two things does a star’s apparent magnitude depend on?
Part 1 Study Questions What is the measured parallax of stars used for? Which is brighter, magnitude 5 or magnitude 0? What two things does a star’s apparent magnitude depend on? What one thing does a star’s absolute magnitude depend on? What is a star’s luminosity?