Green orb appeared over California

On July 8, 2015, an inhabitant of California looked at to the sky and has seen a huge and mysterious green orb. What is it?

Witness statement:

I was at my son's house getting ready to leave for home. When the wife and I stepped out I looked up into the night's sky and saw a green orb like light moving west towards the moon. You can see the green orb through the clouds. I have on more photo that I did not post. It was to far away for me to hear anything. I don't believe it was a plane or anything I'm familiar with.