What makes the Moon shine white in the sky, although it seems to be as dark as asphalt? Earth's average albedo is 3 and 4 times that of the Moon and Ceres respectively (0.37 vs 0.12 and 0.09). But ...
I'm designing a sensor system to perform specialized [astronomy and space-sciences] experiments, and need a "reality check" to support or adjust my theoretical calculations. What I need is the ...
Given that the limiting magnitude of a 5cm telescope is 10, what is the limiting magnitude of a 2.5m telescope? I assume that the limiting magnitude for this problem is a function of light gathering ...