Image Details
Caption: Fig. 5.
Section of a Skylab SO82a spectroheliogram showing an image of the Sun in He II 303.78 Å and the Si XI ﹩\lambda 303.32﹩ Å silhouette of the solar limb illuminated from beyond the limb by a bright active region. (Notice that the color table is reversed on this figure.) A color version of this figure appears in the online edition of the Astrophysical Journal.
© 1999. The American Astronomical Society. All rights reserved. Printed in U.S.A.