I think you're vastly underestimating the amount of surface area covered by a satelite: A quick check of Wikipedia[1] told me that the orbit altitude of Starli

I think you're vastly underestimating the amount of surface area covered by a satelite: A quick check of Wikipedia[1] told me that the orbit altitude of Starlink satelites is 550km. The earth has a radius of 6371 km. Based on some trig calculation (which can be done on this[2] little php web applet I found), the visible percentage of the Earth from 550km is 4%! That's a lot. Of course, that's a significant overestimate, since it counts surface area which is just barely technically visible at a nearly 180 degree angle, and assumes a spherical Earth. Let's be generous, and say that only 5% of that area is both reasonably visible from StarLink (I apologize for this crudeness, I'm too lazy to do the math) and above trees/buildings/mountains. So that's .2% of the Earth visible from each satelite at an azimuth which is possibly visible for an average human observer on the ground. That gives an average number of 84 satelites observable, assuming a normal distribution, and likely many more for an average observer in an above-average-density area. Obviously these aren't going to be as visible and bright as the ISS or Iridium flares, but they aren't gonna be sparse. [1]https://en.wikipedia.org/wiki/SpaceX_Starlink https://en.wikipedia.org/wiki/SpaceX_Starlink [2]http://www.neoprogrammics.com/spheres/visible_fraction_of_surface.php http://www.neoprogrammics.com/spheres/visible_fraction_of_su...