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Johann Elert Bode

astronomy
Johann Elert Bode and the Titius-Bode Law

Johann Elert Bode and the Titius-Bode Law

Harald Sack
On November 23, 1826, German astronomer Johann Elert Bode passed away. Bode is best known for his popularization of the Titius-Bode‘s law, a hypothesis that the bodies in some orbital systems, including the Sun‘s, orbit at semi-major axes in a function of planetary sequence. The formula suggests that, extending outward, each planet would be approximately twice as far from the Sun as the one before. Early Years Johann Elert Bode was born…
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astronomy
Johann Heinrich von Mädler and the First Accurate Map of the Moon

Johann Heinrich von Mädler and the First Accurate Map of the Moon

Tabea Tietz
On May 29, 1794, German astronomer Johann Heinrich von Mädler was born. He is best known for producing one of the first exact map of the Moon, the Mappa Selenographica. Johann Heinrich von Mädler – Early Years Mädler was born in Berlin, Germany, the son of a master tailor. At birth, however, he was so weak that it was feared that he could only survive for a few hours. Over the years his…
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astronomy
Johann Daniel Titius and the Titius-Bode Law

Johann Daniel Titius and the Titius-Bode Law

Tabea Tietz
On January 2, 1729, German astronomer Johann Daniel Titius was born. He is best known for formulating the Titius–Bode law, a hypothesis that the bodies in some orbital systems, including the Sun’s, orbit at semi-major axes in a function of planetary sequence. The formula suggests that, extending outward, each planet would be approximately twice as far from the Sun as the one before. The hypothesis correctly anticipated the orbits of Ceres and Uranus,…
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astronomy
Heinrich Olbers and the Olbers’ Paradox

Heinrich Olbers and the Olbers’ Paradox

Harald Sack
On October 11, 1758, German physician and astronomer Heinrich Wilhelm Matthias Olbers was born. Besides his discovery of comets and minor planets, Olbers is best known for his new method to calculate the velocity of falling stars. Maybe you have also heard of the famous Olbers’ paradox, which asks “why is the night sky dark if there are so many bright stars all around to light it?” Heinrich Olbers Background Heinrich Olbers was born…
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astronomy
Giuseppe Piazzi and the Discovery of Dwarf Planet Ceres

Giuseppe Piazzi and the Discovery of Dwarf Planet Ceres

Harald Sack
On January 1, 1801, Italian Catholic priest of the Theatine order, mathematician, and astronomer Giuseppe Piazzi discovered Ceres, today known as the largest member of the asteroid belt. We already had several articles on almost all the planets of the Solar System, including the dwarf planets. [14] As you might know, our Solar System does not only comprise the Sun and the planets Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. Besides…
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