Q: Suppose we break up the photons arriving in the V-band (covering 890 Angstroms) into bins of width w. How many photons per second will arrive in each bin? small telescope (D = 1m) big telescope (D = 10m) ---------------------------------------------------------------------------- unbinned 1100 110,000 w = 100 Angstrom 124 12,400 w = 10 Angstrom 12.4 1,240 ----------------------------------------------------------------------------