Now i have no clue about the distance but i guess it was in our atmosphere because i could see the shape and the lights very very well.
Much larger than a normal airplane, because i see airplanes like every 5 minutes because the airport is very close.
i sadly dont have any photo's. It all went too fast and it was a total surprise. I hope next time they call me so i can get my camera ready

About the triangle-cases itself, i dont think they are alien. I do think it is man-made craft. Now i have no proof of it except for the much triangle sightings from other people whom have seen that they had USA inscriptions on it.
Of course it could be... damn i dont know,..could be alien, could be NASA, could be some military toy.






