Welcome to A Worldwide Solar Observing Network, Magnetic Sunspot Classifications after Zürich/McIntosh, converted to CV, a numeric system
 
  Articles  
Got some knowledge in amateur solar observing
and would like to participate in a new way
of observing the sun?
JOIN in!

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."



Obituary: Founder of the Zürich/McIntosh-classifications:

Dr. Patrick S. McIntosh died Sunday 16th October 2016
  Reports
  Tables
  Images
  About CV
  JOIN CV!
  Members
  Submit CV-obs.
  Daily report
  Misc.