Strange blue lights from the sky

Hello, I’m writing you because I just started a new job working at a hotel in Battle Creek,Mi and last week I saw the blue light while taking a picture of the moon while outside on my break and I thought something was wrong with my phone camera. I was off for the rest of the week until last night and I just went out (5:00 am) to take another break and this was my first time seeing the moon all night, and I noticed a small light underneath the moon that was not there last week, so I took a picture and oddly that same blue light was back. I took a closer up picture and it was still there in the same place it was last week. You cannot see this blue light without the camera. I did not use any filters on the camera either I usually don’t so I can capture the true beauty of the moon. Could someone maybe take a look at this and tell me what they think it could be? I came to the conclusion that it’s definitely not a bug  because there was nothing flying in front of ! my phone.