الفهرس 
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Abstract
The solar emission in gamma ray is a powerful phenomenon of special importance to solar physics and to terrestrial studies as well.
Statistical measurements were carried out on the gamma-ray events observed through the interval of the solar maximum mission (SMM) satellite operation (1980-1989). This interval contains different factors of variation, which, must be taken into consideration before studying the flare activation.
The current work was built up on three coordinates: the gamma-flares properties active regions producing them and their it’s terrestrial effect in addition to the introduction and data manifestation. These items show remarkable variance with time therefore we focused on the yearly discrepancy we established a wide view of some aspects related to the energetic gamma-eruptions and to which degree they correlate or differentiate during the stages of activity.