1. How does the light-gathering power of one of the Keck telescopes compare with that of the… 1 answer below »

1. How does the light-gathering power of one of the Keck telescopes compare with that of the human eye? Assume that the pupil of your eye can open to a diameter of about 0.8 cm in dark conditions. 2. What is the resolving power of a 25-cm (10-in.) telescope at a wavelength of 550 nm (in the middle of the visual band)? What do two stars 1.5 arc seconds apart look like through this telescope at that wavelength?  

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