I went out on our back patio at approx 10:00 pm on 10/9/19 to smoke. as i was sitting there, i noticed a bright light in the ne sky. i started watching it because of how bright it was and because the lights weren't horizontal in the sky but vertical. over the course of the next 45 minutes, i watched this object which never deviated more than a couple of degrees from its position. it seemed to be a cylindrical object with lights that made it look like it was glittering. the lights would change from red to green to blue and, whenever i would see an obvious airplane in the sky near it, the lights would change to a bright white. once the aircraft was beyond a certain range, it would go back to the r/g/b rotation. after approx 30 minutes, the shape of the craft changed to a tiny pinpoint of light which made me think that it had suddenly taken off but, to my surprise, after about 20 seconds it reappeared the same as it had been before. this happened several times over the next 10 minutes. i finally had to go inside so don't know how long this object was in the sky. did not take any photos as all i had was my cell phone and i knew with it being night and the distance to the object, it would pretty much be useless to try to capture what i was seeing.