The Swedish Astronomical Society (Svenska astronomiska sällskapet) a national organization in Sweden aimed at people who want to follow the achievements of astronomical research,.[1] Founded in 1919 on the initiative of astronomer Nils Nordenmark,[2][3] the society has from the outset aimed to be "an intimate connection between scientists, amateur astronomers and others interested in astronomy"[4] The society runs a program of lectures and other outreach activities, including since 2012 Sweden's annual Day and Night of Astronomy.[5] Since 1920 society has published a quarterly Swedish-language magazine, initially Populär Astronomisk Tidskrift, since 2001 published as Populär Astronomi.[6][7] The current of the society is astronomer and writer Peter Linde.[8]