Spörer's Law


A butterfly diagram illustrating the heliographic width of the resulting sunspots as a function of time

Spörter's law - predicting changes in the position of sunspots in the sun during the solar cycle. It's named after the German astronomer Gustav Spörer.

At the beginning of each sunspot activity cycle, stains are always generated on the heliographic widths of 30 ° to 45 ° (both sides of the equator), and the average width of their occurrence decreases until the helix width is approximately 15 ° during maximum sunshine and maximum number of stains. Then the average stain width is further drifted into the lower helix widths up to about 7 °, after which the stains of the old cycle are extinguished (solar minimum), and new streaks appear on higher helix-widths - and the entire 22-year cycle begins. (the full period of solar activity change - the so-called Hale's magnetic cycle) is repeated.

With the change in the heliographic width, the speed of rotation of the Sun changes, which is called the differential rotation.

wiki

Comments

Popular posts from this blog

Association of Jewish handicrafts "Jad Charuzim"

Grouping Red Arrows

Catechism of Polish Child