Witnessed a red pulsing light and what we thought was a white star.This incident occurred in Chula Vista, CA, between 5:00pm and 5:36 pm. My Daughter and I are in town to assist my Mom after a surgery last week. My Mom’s Neighbor invited my Daughter and me to take advantage of their swimming pool while she and her Family went out of town to go camping. So we decided to do just that. In her yard she has a lounge and as my Daughter and Niece were enjoying the pool I decided to lay on the lounge to relax. As I was laying in the lounge I noticed a plane flying really high in the sky. My Mom regularly has planes fly fairly low while waiting to land at Lindbergh Field. This plane was definitely cruising much faster and much higher than other planes.This was when I noticed a faint white star in the North Eastern sky as I was lying facing North. It was clearly above the plane that flew by. The star was faint enough to lose the image of the star in the ocean of blue sky in So. Cal if I looked away. I used a palm tree to pinpoint the faint white star and kept staring at the star because it seemed to elongate then turn into a pinpoint, but I figured it was because I was literally staring at this star in the sky and my eyes were playing tricks on me.I decided to open up my star app on my phone, my Daughter and I love to use it up where we live in Auburn, CA. The star app showed the tail end of ursa major or ursa minor I don’t quite remember which constellation. In addition I am not sure if the app was calibrated properly. Another plane flew by, again high in the sky, but not in the path of the star, which I thought was strange because I first saw the star because of the flight path of the first plane. Then I considered the current plane is probably flying from a different airport to a different location hence the different location of the star in the sky.I continued to stare at this star when all of a sudden a red round light appeared right next to the star. Appeared is not the correct explanation it faded into view. This red light pulsed and faded into itself. The size of the round red light was smaller than the size of a round sewing pin when it was wide open and it disappeared when the pulse collapsed in on itself. I sat and stared at this pulsing light that was way above the next plane that flew by. It circled around the white star all the while pulsing.At that time I thought I was seeing things. No way could a red pulsing light be so high up in the sky circling around what I thought was a star. So I called my 11 year old over and asked her to lay with me. We use specific words to pinpoint stars in the night sky regularly so I directed her to the faint star in the sky. She said, “Oh my god Mom! I’ve never seen a star in the daytime before. Is that a planet?” Then she said in a concerned tone. “Mom, what is that?” I asked her to describe what she saw. She said, “What is that pulsing light? Mom? What is that light circling the star?” She had a little fear in her voice. I said to her I was not sure what we both were seeing and that I’m glad she saw it too. We both laid there and watched this pulsing light slowly move around the star one last time and then it moved east. A tiny little pulsing red light expanding and collapsing in upon itself about 12” to 16” in the sky and then poof. It was gone.I continued to watch that star for an additional couple of minutes and then I realized. The faint star had moved North East in the sky about 6” toward the palm tree. After thinking about this incident for the last couple of days I realized that stars move from East to West in the sky and that star moved East so slowly that I didn’t realize it until after I stopped looking at the star and took one last glance up. What I saw was not natural. It was not a meteor. It was not a plane.I have no idea what we saw.