Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online.The Zagreb Astronomical Observatory (in Croatian: Zvjezdarnica) is the astronomical observatory located in Zagreb, the Croatian capital, and founded in 1903. It is managed by the Zagreb Astronomical Society; its main purpose is educational.The main telescope under the dome is a 175/1400 mm TMB APO refracting telescope installed in September 2007. The old Zeiss 130/1950 mm telescope has been mounted in parallel and will, after the acquisition of the needed equipment, be use to photograph the Sun in the H line. The third telescope, a Coronado PST H 40/400 mm, is installed next to the main telescope and is used for visual observation of the Sun in the H line. There are also several smaller portable telescopes (Celestron 200/2000mm, Konus refractor 80/900mm etc.) and binoculars. The photo lab makes black and white photographs.