I saw something like this in TX, I think about a year ago. It was partly cloudy; and the sun was high in the sky, in the afternoon. At first I thought it was a reflection in my car window. It wasn't. I couldn't believe my eyes. I asked the people in the car with me if they saw it. They confirmed it. I tried to find a place to pull over to get a picture; but it was too late, before I found a spot. I'm not sure if it was the moon. I suspect that it was some sort of atmospheric reflection.