Answer to Question #16639 in Astronomy | Astrophysics for James Dickson

Question #16639
The brightest star in the sky is the star sirius. It is 2.64 pc distant, and has an apparent visual magnitude of mv= -1.4. If the pupil of the human eye has a diameter of 5mm, how many photons from sirius enter the eye per second?
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Expert's answer
2012-10-22T11:42:10-0400
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