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do we see distant stars as photons enter our eyes? if so how does a light source create so many? in every direction at any point of space, mm by mm, you can see the star. that's a lot of photons containing energy and an infinite number of degree's/directions for them to travel.
none of the photons from mm2 1, travelling in every direction, interfere with photons from mm2 2 of equal energy travelling in every direction
So, you can say: "The Dog is in the eye of the beholder" 
thanks for that but what I meant is that, lets say from our star, we can see every mm from every (infinite) direction and every (infinite) angle so every mm on the surface (as we can only see the surface) is emitting umpteen to the umpteenth amount of photons, giving them the energy to move and to power up our, and every other observers optic nerve. and non of the photons from mm 1, travelling in every (infinite) direction, interfere with photons from mm 2 of equal energy travelling in every (infinite) direction.if it is different photons lighting up our optic nerve then no two people see exactly the same thing as they will have had different photons hitting them and they will have been created at (fractionally) different times and places.
The intensity of radiation decreases with the square of the distance.So, say you have a star, and observers at 1 unit away, 2 units, 3 units, and 4 units distant. Then each observer will see (1, 1/4, 1/9, and 1/16) of the intensity of the first observer (independent of the actual units of measurement). Thus, some of the more distant objects get mighty dim. Those visible to the "naked eye" are only a relatively small number of the closest stars, mostly in our own Galaxy.One can increase the chance of picking up a wayward photon coming this way by two methods, either increasing the time of observation, or increasing the collector size (size of the telescope).As far as the most distant objects viewed... At least one of the most distant objects was attributed to a single star. Well, not an ordinary star, but a supernova with the light output essentially equivalent to an entire galaxy.