Hvar Observatory Bulletin, vol. 29, p. 237-250
Hanslmeier, A.; Vázquez, M.
The source of UV radiation in the solar system is mainly the Sun. The influence of its various compounds as well as the variability is discussed here. It is summarized on which time scales the solar UV radiation is variable and by which processes it influences the atmospheres of planets. UV radiation on solar like stars that may be surrounded by planets plays an important role in the extension of habitable zones in these systems.