a typical corona is only couple degrees in diameter and closely fringes the moon. although not as intense as a solar rainbow, coronas may appear in several colors. on rare occasions lunar halos and lunar coronas can appear together
We see it all the time, but I can never get over how beautiful the moon is set in a sky of twinkling stars. I remember how excited I was when I saw the moon through my little telescope when I was. It was just so beautiful.