Astronomy: The Astronomer Azophi (Abd al Rahman Al-Sufi)
The major discoveries of Abd al Rahman Al-Sufi changed the world the way people looked at stars in the sky. The minor planet "12621 Al-Sufi" were named after his name and lunar crater "Azophi".
In 964CE, Al-Sufi published " book of fixed stars", the one of the most important medieval Arabic treatises on astronomy which contained an extensive star cataloq, stated list of star coordinates and estimated magnitude as well as star detailed charts.
He was the first astronomer to described the nebulosity of nebula in Andromeda in his book named constellations. Al-Sufi identified more than one hundred new stars which mentioned in his constellation's commentaries. He gave a detailed explanation of the individual stars.
His influence continued reaching the world throughout history as far as the end of 19th century. Ulugh Beg 1449, the famous Timurid king and astronomer used many of his works and other astronomers.
Al-Sufi's major contribution was the building of an important observatory building in Shiraz and construction of many astronomical instruments such as astrolabes and celestial globes.
Al-Sufi's eager observations and detailed work still inform our views of the night sky more than a millennium later.
He died on May 25th, 986CE in Shiraz. He is known by the West as "Azophi".
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