the moon and stars, as stated, are reflections... they are not light sources... they do not put off enough light to affect the growth of plants in anyway shape or form.... secondly... the street lamps are the same way.... using the law of diminishing returns a street lamp that is 15ft high will only put 666 lumens to the ground... thats a total of 666 lumens scattered over the entire foot print of the light... which is huge at the height... so even though we can see the light as humans, the light output isnt enough from that distance, again, to affect plants.... and thats even assuming that plant under the street light uses critical photoperiods to judge when to grow and when to flower... thats why the plants "under street lights, along highways and freeways" arent affected because 99% of those plants are annuals and dont need the correct photoperiod to grow or to flower... thats why lilacs and daisys and roses and shit flower the whole season.. it doesnt matter if they get 20 hours of light or 10 hours of light.. MARIJUANA however is one of those plants who do use photoperiods to grow.. as little as one foot candle of light on one square foot of a marijuana plant is enough to send it back into veg.. IM NOT SAYING THIS WILL HAPPEN.. ONLY THAT IT IS ENOUGH LIGHT THAT IT CAN DO THIS... you need total darkness for your plants during the flower cycle... a little light leak, even if it allows you to see the entire grow room, can screw up the plants that are near the leak... ie the amount of light from a lighter is enough light to affect the plants within a few feet of the lighter, but not enough to affect the plants in the back of the garden.. make sense??
