Saw craft with multicolor flashing/strobing lights s

Saw what i thought was an odd color star (blueish green). Looked with binoculars and realized it was some type of craft very very slowly moving in sky over tree line while looking south east. Blue green red white and yellow lights flashing and rotating. Almost as if it were spinning. We watched it for about 30 minutes. (First noticed through living room window so we went outside to get better look). We used binoculars and put our camera up to the eyepiece to get a picture though it didn't come out really well. We got 2 pictures that show some type of strange light/lights. In one picture you can see a star above in the frame. No sound that we could hear.It slowly moved away (south) and eventually went behind clouds appearing less bright until we could no longer see it. A plane actually flew past it while we were watching. Not really close but in same field of view.
Very unusual. We plan on setting up our telescope tomorrow night to see if it returns.