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Yohann Galle

Picture of Yohann Galle

Date of Birth: 09/06/1812

Age: 98

Citizenship: Germany

Background

Johann Gottfried Galle (German Johann Gottfried Galle;. June 9, 1812 - July 10, 1910) - was a German astronomer at the Berlin Observatory, which, following the instructions of Urbena Verrier, September 23, 1846 discovered the planet Neptune.

He began working as an assistant to Johann Franz Encke in 1835 at the Berlin Observatory. In 1851 he moved to Spec, to become a professor of astronomy and director of the local observatory.

During his career he studied comets, and in 1894 (with the help of his son Andreas Galle), he published a list of 414 comets. He himself had discovered three comets in a short period: from December 2, 1839 to March 6, 1840.

The crater on the Moon and Mars and Neptune ring named in his honor.

The first observation of Neptune

Doctoral thesis Galle, completed in 1845, was a shorthand and a critical discussion of the observations of Uranus Ole Romer in the days from 20 October until 23 October 1706. Approximately in 1845 he sent a copy of his thesis Urbain Le Verrier, but was told a year later, 18 September 1846. The response was read Galle on 23 September, and in it Le Verrier asked him to (Halle) was looking for a certain region of the sky to find a predicted new planet, which will explain the excitement of Uranus. That same night, after Encke gave him permission (he did not support the Encke Halle), the object corresponding to the description was found, and the next two nights, it was confirmed that it is a planet.