Walking across the parking lot i noticed a light above the tree line. i thought it was a helicopter at first. it was too slow to be an airplane and there was no sound. the light pulsated very evenly and slowly as opposed to blinking on/off. it was more of a natural reddish orange as opposed to the red of an airplane or helicopter. it actually appeared to become larger as it pulsated. the light then dissipated and was gone within two minutes.