General Theory of Sunspot Statistics on a Rotating Sun
Abstract
General statistical relations valid for sunspot groups on a rotating sun are derived under the assumption that the two fundamental parameters depend on time and heliographic longitude. These parameters are the number of sunspot groups originating per unit time over unit heliographic longitude and their frequency distribution with respect to time. Expressions are obtained for the total number of sunspot groups originating on the entire sun over the period of a whole synodic rotation, the number of sunspot groups disappearing between two longitudes and times, and the number of groups originating in the part of the visible solar hemisphere that is relatively close to the central meridian. Some simplified analytical solutions are noted, and several methods are outlined for computing the number of groups originating on the entire sun as well as their average lifetimes.
 Publication:

Bulletin of the Astronomical Institutes of Czechoslovakia
 Pub Date:
 1976
 Bibcode:
 1976BAICz..27...65K
 Keywords:

 Solar Rotation;
 Sunspots;
 Solar Physics;
 Statistical Analysis;
 Solar Physics