I saw an object flying near my home and I took dozens of photos of it from different angles

I was standing in my backyard garden taking photos of birds and the flowers this morning. I live near a school, and there was someone playing a trumpet on the hilltop, I looked in that direction and noticed a single object reflecting sunlight, I had initially assumed it was a bird of prey. I took several photos of the object as it passed quietly over the sky beyond my house, catching the first image as it crossed behind my neighbor's chimney. I took over 30 images, but at that distance and without my glasses I could not tell what I was looking at. When I loaded the images on my computer I was shocked to see a strange object, and in the images it appeared to change shape a few times. I have the pictures, taken today. The object slowly moved across the sky, and then rose to a very high altitude when I lost sight of it, and stopped taking photos.