OBSERVED CHANGES IN THE STRUCTURE OF THE "CRAB" NEBULA (N. G. C. 1952)

C. O. Lampland

© 1921. The Astronomical Society of the Pacific. All rights reserved. Printed in U.S.A.
Publications of the Astronomical Society of the Pacific, Volume 33, Number 192 Citation C. O. Lampland 1921 PASP 33 79 DOI 10.1086/123039