Samuel Heinrich Schwabe

Samuel Heinrich Schwabe was a German astronomer known for his significant contributions to solar physics in the 19th century. He is best remembered for discovering the solar cycle, a roughly 11-year cycle of sunspot activity on the Sun's surface. His meticulous observations revealed how these sunspots correlate with solar radiation and magnetic activity, impacting space weather and Earth's climate. Schwabe's work laid the groundwork for understanding solar phenomena and their effects on our planet, making him a pivotal figure in astronomy and contributing to how we study the Sun today.