Pa. Triangular shape hovering 50ft with two steady lights in front, multiple blinking lights on sides and bottom and visible 5-7 min

On June 9th at approximately 9:46 pm we spotted an unusual aircraft hovering at about 50 ft in the air.
 This object was slowly rising straight up in the air. This object had 2 lights in what appeared to be the front of it and multiple lights on the sides and multiple lights on the bottom. The two lights were a steady white light but the lights on the bottom and sides were blinking.
 This object appeared to be an oval shape but as it flew over top of us it appeared to be more of a triangular shape.
 This object was very loud.
 This object made what appeared to be several zig zag movements. It appeared to speed up at times and then slow down.
 This object was spotted over Morris Cemetery in Phoenixville and flew in the direction of Philadelphia.
 This is not the first time this object was spotted by us.
We took a video of this object.