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Introductory Physics Homework Help
Calculating Quasar Variability Using CCD Camera and Magnitude Comparison
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[QUOTE="StillLearningToronto, post: 6055672, member: 618589"] [h2]Homework Statement [/h2] You have decided to use a CCD camera to check if a 16th magnitude quasar is variable. With your telescope/camera combination, you know that a star with a magnitude of 0 would deliver 1 × 109 photons/second to one pixel, so this allows you to work out the photons/second from the quasar delivered to one pixel. SO- taking out the numbers i need: My quasar is the 16th magnitude. The star I am comparing it to has a magnitude of 0. The 0 mag star gives out 1*10^9 photons/second (1 pixel) [h2]Homework Equations[/h2] m2-m1=-2.5log(F2/F1)[h2]The Attempt at a Solution[/h2] Im not sure if "flux" and "photons/second" are the same thing, BUT if they are, then: m2-m1=-2.5log(F2/F1) 16-0=-2.5log(F2/1*10^9photons/second) F2=3.98*10^2 photons/second.**Im not looking for the answer because I really want to figure this out, I just need to know if I am going in the right direction, thank you in advance ! (: [/QUOTE]
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Calculating Quasar Variability Using CCD Camera and Magnitude Comparison
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