Further Remarks on the Cosmological Time Scale.

  • F. Zwicky
  • Published 1940 in
    Proceedings of the National Academy of Sciences…
6. Summary.-With what appears to be a homogeneous system of magnitude standards, the light curves of forty classical Cepheids in the Large Magellanic Cloud have been determined from estimates made on plates with the 24-inch Bruce refractor. The whole range of known periods, from 2.5 to 118 days, is represented, but special attention has been paid to stars… CONTINUE READING