SOLAR TOPICS A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z                    HOME ABOUT CATEGORIES SITE MAP COPYRIGHT ADVERTISE CONTACT entire Web this site magnetogram At left, a magnetogram showing solar surface magnetic field structures; and, at right, Skylab photograph in ultraviolet of some area. Credits: Magnetogram from Kitt Peak National Laboratory; photo from Naval research Laboratory and NASA A chart that shows the strength, polarity, and distribution of magnetic fields across the Sun's disk. It is produced by a magnetograph, which measures Zeeman splitting by taking two narrowband images in a spectral line that is sensitive to the magnetic field. Gray areas in a magnetogram indicate that there is no magnetic field along the line of sight, while black and white areas indicate regions where there is a magnetic field. Related category    • SOLAR TOPICS Also on this site: Encyclopedia of Alternative Energy & Sustainable Living Encyclopedia of History Transport Concepts & Designs (partner site) BACK TO TOP