Surface of the Sun (3 of 3) (IMAGE) Max-Planck-Gesellschaft Caption Grainy sun: the images show the so-called granulation in four different wavelengths in near ultraviolet light. The image section depicts 1/20,000 of the entire surface. The smallest recognisable structures have an angular resolution equal to that of looking at a coin from a distance of 100 kilometres. The light structures are the foundational elements of the magnetic fields. Credit Image: MPI for Solar System Research Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.