I saw a UFO

Alright, so last night around 11:12 I was laying in bed looking at the stars like I usually do when I saw this odd dome shaped object in the sky.  At first I thought it was just some kind of common device known as an airplane. To my surprise it was staying in the same place not moving.  I made my way outside to get a better look at this flying object and came to realize it was probably a UFO.  Stupidly I did not have my phone on me to get a picture of this phenomenom. I then ran into the house and called a friend and explained this to them, they got mad and called me crazy.  I know what I saw.