Sky Observations: Great Contributions of Islamic Scholars from Baghdad to Samarkand

Sky Observations: Great Contributions of Islamic Scholars from Baghdad to Samarkand. Islamic civilization reached its peak in astronomy, changing the way humans understand the universe. From the House of Wisdom in Baghdad to Ulugh Beg's observatory in Samarkand, Islamic scholars left tools, methods, and discoveries that became the foundation of modern science. This article reveals the journey of this knowledge with a positive and enlightening tone.. While Europe was struggling with the Middle Ages, the Islamic world illuminated the darkness with the light of knowledge. Among all branches of science, astronomy may be the most fascinating — because it is not just counting stars, but contemplating the grandeur of creation. From the prosperous city of Baghdad to the cool heights of Samarkand, Islamic scholars have recorded a glorious history in sky observations. The Rise of Astronomy at the House of Wisdom This story begins in the 8th century, when Caliph Harun al-Rashid and later al-Ma'mun established the House of Wisdom House of Knowledge in Baghdad. Here, scholars from various backgrounds — Muslim, Christian, Jewish, and Persian — gathered to translate great Greek works such as Ptolemy's Almagest. However, they did not merely copy; they added, improved, and created new knowledge. One of the greatest contributions was the creation of the astrolabe — an instrument capable of measuring the height of stars and determining prayer times. Al-Farghani Alfraganus wrote the book "Elements of Astronomy" which became a reference for Europe for centuries. He calculated the Earth's diameter with astonishing accuracy, only slightly differing from the modern measurement. More importantly, Islamic scholars introduced scientific methods: careful observation, precise measurements, and systematic mathematical calculations. Observatories: Centers of Knowledge That Soared Baghdad was not the only center of brilliance. In the 9th century, al-Ma'mun founded the first observatory in Syria now Syria and Baghdad, complete with giant measuring instruments such as the quadrant and sextant. Here, al-Battani Albategnius spent 40 years studying the movement of the Sun and Moon. He discovered that the Earth's orbit is not a perfect circle, but an ellipse — a discovery that preceded Kepler by 600 years. However, the peak of Islamic astronomical glory may have occurred in Samarkand, in the 15th century. There, Ulugh Beg — a ruler from the Timurid dynasty — built an unmatched observatory. With three levels high, this observatory was equipped with a giant semi-circular sextant, with a radius of 40 meters. This instrument allowed him to measure the positions of stars with unprecedented accuracy. As a result, the Ulugh Beg Star Catalog listed more than 1,018 stars with very accurate coordinates, becoming a primary reference in Europe until the 17th century. Outstanding Figures Who Changed the World Besides al-Battani and Ulugh Beg, many other names deserve to be remembered. For example, Al-Biruni suggested that the Earth rotates on its axis in his book "Al-Qanun al-Mas'udi." He also calculated the circumference of the Earth using advanced trigonometric methods, only deviating 0.5% from the actual measurement. Ibn al-Haytham Alhazen criticized Ptolemy's theory and developed optical methods that helped understand starlight. In Al-Andalus, al-Zarqali Azarquiel created an astronomical table known as the "Toledo Tables" — a guide for navigation and agriculture in Europe. Meanwhile, Nasir al-Din al-Tusi, in the Maragheh Observatory 13th century , introduced the "Tusi Couple" — a mathematical model that explained planetary motion without assuming the Earth as the center of the universe. This theory later influenced Copernicus. A Legacy That Continues to Shine The contributions of Islamic scholars in astronomy were not only in terms of discoveries, but also in methods and philosophy. They developed spherical trigonometry, which is essential for astronomical calculations. They also emphasized that the universe can be understood through mathematics and observation — a principle that forms the basis of modern science. When Europe began to rise during the Renaissance, Islamic manuscripts became a main source. Books such as the Arabic version of the "Almagest" and the works of Al-Farghani were read in European universities. Names like Albategnius, Alphonsus, and Azarquiel remain on the moon map to this day. Without their contributions, Copernicus might not have dared to challenge geocentrism. Today, when we look at a night sky full of stars, remember that each point of light was once measured, calculated, and contemplated by Islamic scholars — from Baghdad to Samarkand. They taught us that knowledge is a light that never fades, and that gazing at the sky is a form of the highest worship. Conclusion: Lessons from History The story of Islamic astronomy reminds us that the brilliance of a civilization is not measured by wealth or power, but by how much it contributes to human civilization. Islamic scholars not only preserved Greek knowledge, but enriched it with innovation and precision. In a world that is often divided, this legacy teaches us that knowledge knows no boundaries — it belongs to all humanity. Let us continue to appreciate and study this history, so that the spirit of learning that once burned in Baghdad and Samarkand continues to inspire future generations. --- Reference: History of astronomy — Wikipedia https://en.wikipedia.org/wiki/History of astronomy