Maragheh Observatory(Rasad khaneye Maragheh) in East Azarbaijan Province
Maragheh amateur astronomers on the observatory hill in front of the dome was built to protect the monuments.
Maragheh observatory was in the period under Nasir Toosi Helakokhan Maragheh was built in the city. The observatory is located on a hill in West Maragheh and followed by various departments and today only one sixth part of the stone remains. In recent years the dome to protect the remains of this building is built on part of it.
Varjavand Parviz and his colleagues explored the area in decades in 1350 Solar Observatory and the different parts of it were identified. The main building of the observatory was built in the shape of a cylindrical tower. Side of the building of a library and staff accommodation has been detected.
Record
Maragheh observatory built in 657 AH (1261 AD) Khwaja Nasir Toosi and ordered to command Helako - grandson of Genghis Khan's Mongol - began. Hvlako special endowment for the maintenance of the agency considered. Library includes 400 thousand books and astronomy instruments, including the nature wall radius 430 cm, the essence of Korean, the ring, ring, ring equinox and were also provided. It was there that patriarch horoscope year 670 AH (1276 AD) was provided.
Maragheh Observatory observations of the stars was not only a scientific organization of more branches of knowledge that was taught and the most famous scientists of the era - including pole-Din Shirazi, discovered the cause of the rainbow - there were . Moreover, because the scientific relationship with China and Iran were established because the land on both Mongols, Chinese scientists - including FAO named Moon Ji - in the center of outdoor activities. The philosopher and playwright Christian culture - The Observatory Maragheh books to teach the principles and Ptolemy was involved.
Horoscope patriarch
Khwaja Nasir Tusi "horoscope patriarch" of the observations made at the Observatory has developed Maragheh. Horoscope century patriarch of the validity of certain of the territories - including China - have been in 1356 AD (300 years after Gray's death) was translated and published in Europe. The oldest version of the National Library in Paris is being held in the horoscope.