Sitting on the back patio. suddenly a bright green ball of light flies past a bit slower than a shooting star. it turned from green to blue and disappeared behind the tree line far in the distance. looked like a shooting star but never saw one that color. they have always been white to maybe an orange. i have saw one like this before in the upper part of michigan but this one flew faster. it didn't leave a long streak like a shooting star would do. it looked like it was on fire but as it flew across the sky it stayed fuzzy within the orb like area. it never seemed to burn out. it went half way across the sky and disappeared beyond the tree line. it took maybe a total of 30 seconds that i could see in the limited view that i had. the orb looked just like the one i saw in up north michigan and that one flew very low and 3 of us watched it fly directly from south to north for a good solid minute.