Simon Marius

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German astronomers and doctors

west gate ·Simon Marius, born on January 10, 1573 Germany Gunzenhausen of Bavaria, a German astronomer and doctor 。

Chinese name: Simon Marius
Nationality: Germany
date of birth: January 10, 1573

Date of death: December 26, 1624
Occupation: astronomer
one's native heath: Bavaria

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Simon Marius in Mundus iovialis went to school in Heilsbronn from 1586 to 1601. He had already shown his genius in mathematics and astronomy at school. He gained fame through his publication of the observation results of the comet in 1596 and the astronomical table published in 1599. In 1601, he was appointed court mathematician of the Earl of Ansbach. He went to Prague to learn the observation technology of Tycho Brahe. But Tycho died only four months after his arrival. Then he studied medicine at Padua University in 1605. He is one of the scholars around Galileo Galilei. In 1604, he observed a comet, and his students published his observation structure. After that, he returned to Ensbach. As a court mathematician (actually an astrologer), his task is to edit the annual "prophecy". In 1609, he published the first German Euclid's Geometric Elements translated from the Greek original.

In 1610, he found four large moons of Jupiter unrelated to Galileo. Galileo accused him of copying his own research results. Before that, Marius' students had published a manuscript of Galileo in their own names, and it was said that Marius had also been involved in this process. Nevertheless, Marius later suggested that the four satellites should be named Galileo. Galileo originally intended to name the four satellites after the members of the Medici family, but this suggestion was not adopted later. The discovery of these four satellites was a miracle Because they are like a small solar system. They played an important role in the process of the heliocentric theory defeating the geocentric theory.

He and others astronomer The sunspot was found irrelevant. In 1612, he observed the nearest alien galaxy to the Milky Way Andromeda galaxy 。 Marius seems to have known that the Persian astronomer Sophie had described this galaxy in about 905, so he did not claim to be its discoverer. But it wasn't until 1923 that Edwin Hubble used it Mount Wilson Observatory The 2.5 meter telescope proves that it is a star system outside the Milky Way. With the naked eye, it looks like a small cloud, which is almost the same as a fifth class star.

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International Astronomical Union Name a crater on the moon after him. In addition, there is a liberal arts and science school in his hometown named after him.

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