births
October 25, 1789
Heinrich Schwabe, German astronomer (died 1875)

Heinrich Schwabe
Samuel Heinrich Schwabe was a German amateur astronomer remembered for his work on sunspots. He observed sunspots and made drawings of them from 1825 to 1867 and suggested in 1838 that there may be a ten-year cycle of sunspot activity. He also took an interest in botany and was a founding member of a natural history society in Dessau.