ASTRONOMER

Johannes Kepler

1571 - 1630

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Johannes Kepler (27 December 1571 – 15 November 1630) was a German astronomer, mathematician, astrologer, natural philosopher and writer on music. He is a key figure in the 17th-century Scientific Revolution, best known for his laws of planetary motion, and his books Astronomia nova, Harmonice Mundi, and Epitome Astronomiae Copernicanae, influencing among others Isaac Newton, providing one of the foundations for his theory of universal gravitation. The variety and impact of his work made Kepler one of the founders and fathers of modern astronomy, the scientific method, natural and modern science. He has been described as the "father of science fiction" for his novel Somnium. Read more on Wikipedia

His biography is available in different languages on Wikipedia. Johannes Kepler is the 3rd most popular astronomer, the 15th most popular biography from Germany (down from 13th in 2019) and the most popular German Astronomer.

Johannes Kepler is most famous for his three laws of planetary motion. His first law states that the planets orbit the sun in ellipses, not circles. His second law states that a line connecting the planet to the sun sweeps out equal areas in equal times. His third law states that the square of the orbital period is proportional to the cube of the semi-major axis.

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Among ASTRONOMERS

Among astronomers, Johannes Kepler ranks 3 out of 644. Before him are Galileo Galilei, and Nicolaus Copernicus. After him are Giordano Bruno, Ptolemy, Edmond Halley, Tycho Brahe, Anders Celsius, Heinrich Wilhelm Matthias Olbers, William Herschel, Aristarchus of Samos, and Hipparchus.

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Contemporaries

Among people born in 1571, Johannes Kepler ranks 1. After him are Caravaggio, Abbas the Great, Hasekura Tsunenaga, Emperor Go-Yōzei, Michael Praetorius, Mulla Sadra, Frederick de Houtman, Thomas Mun, Willem Blaeu, Ferdinand, Prince of Asturias, and Charles Bonaventure de Longueval, 2nd Count of Bucquoy. Among people deceased in 1630, Johannes Kepler ranks 1. After him are Charles Emmanuel I, Duke of Savoy, Ambrogio Spinola, 1st Marquess of Balbases, Fede Galizia, Henry Briggs, Yuan Chonghuan, Agrippa d'Aubigné, Johann Schein, Christian I, Prince of Anhalt-Bernburg, Gioachino Greco, Esaias van de Velde, and Akile Hatun.

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In Germany

Among people born in Germany, Johannes Kepler ranks 15 out of 7,253. Before him are Johann Wolfgang von Goethe (1749), Johannes Gutenberg (1394), Friedrich Nietzsche (1844), Charlemagne (748), Empress Elisabeth of Austria (1837), and Albrecht Dürer (1471). After him are George Frideric Handel (1685), Joseph Goebbels (1897), Otto von Bismarck (1815), Wilhelm II, German Emperor (1859), Peter Paul Rubens (1577), and Georg Wilhelm Friedrich Hegel (1770).

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Among ASTRONOMERS In Germany

Among astronomers born in Germany, Johannes Kepler ranks 1. After him are Heinrich Wilhelm Matthias Olbers (1758), William Herschel (1738), Caroline Herschel (1750), Heinrich Louis d'Arrest (1822), Johann Gottfried Galle (1812), Johann Bayer (1572), Wilhelm Schickard (1592), Friedrich Georg Wilhelm von Struve (1793), Walter Baade (1893), Johann Franz Encke (1791), and Max Wolf (1863).

German born Astronomers

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