Urbain Le Verrier

Johann Gottfried Galle and the First Observation of Planet Neptune

Johann Gottfried Galle and the First Observation of Planet Neptune

On June 9, 1812, German astronomer Johann Gottfried Galle was born. Galle actually was the first person to view the planet Neptune and know what he was looking at, by making use of the calculations of his fellow astronomer Urbain Le Verrier. Background Johann Gottfried Galle Johann Gottfried Galle studied at the Friedrich-Wilhelms-Universität Berlin between 1839 and 1833 and started to work at the new Berlin Observatory two years later. There, he worked…
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Camille Flammarion and his Balancing Act between Popular Science and Science Fiction

Camille Flammarion and his Balancing Act between Popular Science and Science Fiction

On February 26, 1848, French astronomer and author Nicolas Camille Flammarion was born. He maintained a private observatory, where he studied double and multiple stars, the moon and Mars. He is best known as a prolific author of more than fifty titles, including popular science works about astronomy, several notable early science fiction novels, and works on psychical research and related topics. “May we attribute to the color of the herbage and…
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Urbain Le Verrier and the hypothetical Planet Vulcan

Urbain Le Verrier and the hypothetical Planet Vulcan

On 2 January 1860, French astronomer Urbain Le Verrier announced the discovery of Vulcan, a hypothetical planet inside the Mercury orbit, to a meeting of the Académie des Sciences in Paris. Despite the lack of any reliable observation, Le Verrier really was convinced until his death that he had discovered a new planet. It was Einstein’s special theory of relativity and a completely new understanding of the laws of gravity that modified the predicted…
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Neptune, Oceanos, or ‘Le Verrier’ – How to name a new planet?

Neptune, Oceanos, or ‘Le Verrier’ – How to name a new planet?

On June 9, 1812, German astronomer Johann Gottfried Galle was born. Also in Germany hardly anybody might know Galle today. Well, maybe except most astronomers, who will certainly know him, because he has discovered the planet Neptune. No, he didn’t do it all by himself. Actually, we’ve had already several articles on astronomers involved in the discovery of Neptune [5,6,7] Johann Gottfried Galle – Early Life Galle was born in the Pabsthaus not…
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John Couch Adams and the Discovery of Planet Neptune

John Couch Adams and the Discovery of Planet Neptune

On January 21, 1821, English mathematician and astronomer John Couch Adams passed away. Adams most famous achievement was predicting the existence and position of Neptune, using only mathematics. The calculations were made to explain discrepancies with Uranus‘s orbit and the laws of Kepler and Newton. At the same time, but unknown to each other, the same calculations were made by Urbain Le Verrier.[5] Youth and Education John Couch Adams was born at…
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Scientist and Politician François Arago

Scientist and Politician François Arago

On February 26, 1786, French mathematician, physicist, and astronomer François Arago was born. Arago discovered the principle of the production of magnetism by rotation of a nonmagnetic conductor. He also devised an experiment that proved the wave theory of light and engaged with others in research that led to the discovery of the laws of light polarization. Francois Arago – Early Years Dominique-François-Jean Arago was born in Estagel, Roussillon, France. His father was…
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The Astronomical Achievements of Sir George Biddell Airy

The Astronomical Achievements of Sir George Biddell Airy

On July 27, 1801, English mathematician, astronomer, and Astronomer Royal George Biddell Airy was born. His many achievements include work on planetary orbits, measuring the mean density of the Earth, a method of solution of two-dimensional problems in solid mechanics and, in his role as Astronomer Royal, establishing Greenwich as the location of the prime meridian. “It is not simply that a clear understanding is acquired of the movements of the great bodies which we regard as the system of the…
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