Acta Astronomica Posted on 7. January 2017 by Jan BilohuscinLast updated11. September 2017Acta Astronomica Copernicus FoundationImpact factorSJRSNIP20163.0431.5591.05020152.0001.3350.63020141.9802.4051.61020131.9551.8601.29020122.6821.8111.29020111.6801.7901.01020103.4911.6341.09020092.4711.7671.54020081.7781.3450.930Post navigationAdvance Research Journal of Multidisciplinary DiscoveriesAdvances in Space ResearchLeave a Reply Cancel replyYour email address will not be published. Required fields are marked *CommentName * Email * Website