Shamakhi Astrophysical Observatory

Shamakhi Astrophysical Observatory () is an astronomical observatory in the Greater Caucasus Mountains in Shamakhi Rayon in Azerbaijan. The observatory is one of the biggest in the South Caucasus. It is named after the medieval Persian astronomer Nasir al-Din al-Tusi. It is owned and operated by the Azerbaijan National Academy of Sciences. 
It was built between 1958-1960 during the Soviet era as the main observing site for the Azerbaijan National Academy of Sciences which is located away in Baku. The observatory is about northwest of the city of Shamakhi. The observatory is at above sea level. It has 150–200 clear, cloudless nights per year, which is the reason why the observatory was built at this location. It has a total of four telescopes. Many comets, asteroids and other astronomical objects were discovered with its telescopes.