ABOUT AVICENNA'S CONTRIBUTION TO ASTRONOMY
The article briefly reveals some of the views of the famous medieval Tajik scientist-encyclopedic Abu Ali ibn Sina (Avicenna, 980-1037) about astronomy. Based on the study of the natural science and astronomical works of the scientist and treatises of other medieval Persian-Tajik thinkers like Nasir ad-Din at-Tusi (1201-1274), his astronomical ideas about celestial bodies and astronomical instruments of the Middle Ages are analyzed. Avicenna devoted twenty years of his life to questions of astronomy and conducted observations at the observatory he was entrusted with in Isfahan. Many of his views were confirmed in the writings of subsequent scholars of the East and West. The article is interdisciplinary in nature, written at the junction of the subject of astronomy and history, taking into account the historical and scientific analysis.