User:Cvhelios

CV-Helios Network

Classification Values (Malde-1981) www.cv-helios.net

Magnetic classifications of sunspots based on the Zürich/McIntosh-system: Classification Values (C.V.) derived by Kjell Inge Malde (15 Aug 1981) is: "A 'sunspot count' derived using weighting of Zürich (Modified) McIntosh classifications": "The 'C.V.' intends to measure the variety of sunspot region classifications with respect to their ability of survival, typical life styles, complexity, structure, polarity, size and elongation on the solar disk."

The network observes sunspot regions in order to classify them after the Zürich/McIntosh-method. The sketched table can be found here: http://www.cv-helios.net/zmcls.html

From the 23rd of July 1978 until official 15th of August 1981, Kjell Inge Malde, amateur astronomer from Stavanger in Norway, studied the table above related to the observed values over a number of years in order to find which sunspotregions have the best ability of survival on the solar disk, but also the best flare-producers.

During this time, Malde was in steady contact both with Dr Patrick S. McIntosh and Dr Helen Coffey at NOAA to maintain informations.

The network quickly became successful and amateurs all over the world participated in the new system and a new method of measuring the solar activity for the amateur solar astronomer.