At 8:40pm I took our dogs out to our backyard; there were no clouds in the sky and it wasn't completely dark outside yet. I was looking around while they finished their business and noticed due north, a bright red, very low object traveling slowly due east. It was quite low, which is why it caught my eye. We have a major airport about fifteen minutes away so we see a good number of planes on a regular basis. However, they are all quite high in the sky and they make a slight noise. I first thought perhaps this was an airplane in trouble but it wasn't large enough and I couldn't hear any noise. Also, the planes we see follow a north-south route, they don't fly east to west.I watched it travel east, then it abruptly reversed direction and headed west. At that point it rose higher into the sky, then changed direction again to travel east. I lost sight of it because of large trees in our yard. I had my mobil phone with me and set it on video in case it came back around. It did and I trained my camera on it as it made the same east to west, higher then lower, moves. I was ecstatic that I was filming it, then realized that I hadn't pushed the record button. I have never used the video feature before and didn't know I had to do that. I was able to snap two pictures but you can barely see it and it looks white, not red in the photos.The entire viewing was about 3-4 minutes and after it turned west again for the last time, it simply disappeared. It looked like its lights just went out. I don't know but I am estimating that it was perhaps a mile or so from our house. The dogs didn't react as it wasn't visible if you weren't standing up looking past our fence and trees.It was quite unnerving and a bit exciting but I truly did not want it to change directions and move towards our house. After it disappeared I waited about five minutes to see if it returned but it didn't. I wondered if it could've been some sort of drone but I know nothing about how they operate or if they have lights or are legal in neighborhoods, etc.Over the years, I have seen a few unexplained things in the sky but never have I seen one move like this or stay visible for what felt like a long time. I'm curious if anyone else in Southlake or nearby areas saw this object too. (I don't have a 2nd email address so I wrote none.)