Just after the summer solstice this year was another astronomical event called "the super moon." Since the moon is a bit of an elliptical orbit around the earth, sometimes it is closer than at other times. The closer path happened to be near a full moon. I've read where the moon is about 10% larger looking than normal because of it being closer to the Earth.
Taking photos of the moon is a bit of a mind bender. If you point your camera at the sky and snap the image, all the blackness of the sky will fool your camera into over exposing the image and the moon will be a solid white disc in the sky. It requires some manual intervention to get the correct exposure.
Think about what you are photographing. The moon is an object that is in direct sunlight about the same distance of the sun as the earth is. That said, start by using the same exposure that you would photography any object that is in direct sunlight on the Earth.
The technical details for this particular image was iso 640, shutter 1/3200, aperture f4. It seems kind of strange to shoot an image in the black of night at 1/3200 of a second, but the exposure is about perfect.