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observatory of earth, planet and sun | by Iqbal.Khatri
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observatory of earth, planet and sun

KHALIFA MAMUN-EL-RASHID 813-833 A.D (198 A.H. -218 A.H.)



During the reign of abbasid caliph mamun-el-Rashid notable progress was made in

the since of astronomy and first observatroy to measure earth's circumference was

established under his order well. known astronomers like yahya bin Mansoor, Khalid

bin Abdul Malik Maruzie and Abbas bin Saeed prepared astronomical tables to establish

an observatory at the city of Shamasa to collect infomation about the sun and other




It is a artwork of well Know pakistan's artisit Aftab Zafar .

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Taken on December 23, 2006