Had my first unusual sighting last night. 9:00pm above the st. Croix river in st. Croix falls wi

Had my first unusual sighting last night. 9:00pm above the st. Croix river in st. Croix falls wi
Time: 9:00 pm
Location: St. Croix falls, Wi

Thought it was a helicopter at first. i live way out in the country so if there was any noise I would have heard it. I watched it for 30 minutes before I went to bed and it never moved. I've lived here for 15 years and I know there is no star in that location to the west of me.  Looked to be about a mile away hovering over the river. I looked at it with binoculars and it appeared to be long and skinny with red green white blue lights alternating. Sorry for the grainy cell phone video.