Three "stars" that formed a triangle moving slowly then fading out.

I was pacing around my front porch, on the phone with my cousin. It was about 7:30pm.
She was talking to me about our aunt, as she's talking to me I stare up at the night sky and I see this really bright star to the left of our big sticky gum tree, which caught my attention. As she is talking I move over to my left to get a clear view and notice that the bright star that formed a small triangle with two other fainter looking stars. As my cousin is still talking to me, I'm staring at (what I thought was a constellation) the triangle of stars, the top star looked like it was moving. I then realize that all three stars that formed the small triangle were slowly moving downward. I then interrupted my cousin to explain what I was seeing, as I was talking to her the three star looking objects slowly faded out, with the brightest light that was on the left being the last to fade into nothing.
 After I hung up, I went on a skymap app I have on my phone, to try and map out where I saw the triangle of lights. The small triangle of lights looked like it was in a larger triangle of stars. Which I believe was, Y Uma (the point), Dubhe (bottom left), Merak (bottom right).
 I have never seen anything CLOSE to a UFO before. I'm still trying to rationalize this!