Accession Number:

AD0632166

Title:

SECULAR VARIATIONS IN THE MAGNETIC FIELD STRENGTH OF SUNSPOT GROUPS.

Descriptive Note:

Scientific rept.,

Corporate Author:

OSLO UNIV (NORWAY) INST OF THEORETICAL ASTROPHYSICS

Personal Author(s):

Report Date:

1965-01-01

Pagination or Media Count:

46.0

Abstract:

The relation between area and magnetic field strength of sunspot groups, the magnetic life history of long -lived spots and frequency distribution of observed maximum field strength of sunspot groups were studied over the period 1917-1958. The secular variations which are detected are discussed and compared with the secular variations established previously in the number of sunspot groups, their areas, area distribution etc. Finally a brief account is given of the eighty-year cycle of sunspots. Author

Subject Categories:

  • Astrophysics
  • Plasma Physics and Magnetohydrodynamics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE