So this thread got me thinking. Would the lux at 1/4 mile of say the new deft or a maxabeam be much higher in space?
And if you want bright cosmic objects, look into pulsars. Our sun is 865,000 miles in diameter and only lights the majority of the solar system, which is ten light hours across. The Crab Nebula pulsar is only ten miles in diameter and lights a dust cloud 23 light years across.
Easy, all of them. :nana:
A just-published three-year study from a gamma ray array in Tibet captured output from the Crab Nebula in which individual photons had the kinetic energy of a flying bumblebee - the most powerful light ever seen on planet Earth.