PREDNASAJUCI / LECTURER :

Vojtech Rušin

(1) Astronomical Institute, Slovak Academy of Sciences,
059 60 Tatranská Lomnica

NAZOV / TITLE :

Prominences, sunspots and corona shape

ABSTRAKT / ABSTRACT :

What is responsible for the shape of the white-light corona as we know it from observations during
total solar eclipses? Sunspots or prominences (neither, but large-scale magnetic fields on the Sun)?
Is it possible to predict the maximum of the solar activity cycle and its amplitude from the flattening 
index of the white-light corona as stated by Ludendorff? I am of the opinion that thiscannot be done and 
I will try to give an answer why not. Or, to put it another way, it is possibleto predict, but it has no 
scientific basis.