Bright twinkling light with no colors flew witrh unusual pattern including a short curve and blinked outI was out in my friends back yard looking up at the moom. We see many planes flying over our town on their way east from Sky Harbor, Phoenix. I saw a bright sparkling light going toward the Southeast and passing quite close to the crescent moon. I kept watching it waiting to see the telltale blinking lights we see on all the planes. It continured and seemed to almost pause and the light was like a rotating crystal effect. I called my friend to come out cause I knew this was not a plane. As she and started looking up the light faded and blinked out. The whole episode was about 30 seconds. I have watch many, many planes fly over and this was not any type plane I have ever seen.