Quadrate in Mannheim, Baden-Württemberg, Germany — Central Europe
Christian Mayer
20.08.1719 - 16.04.1783
Photographed By James Hulse, February 20, 2024
1. Christian Mayer Marker
Der Jesuitenpater, Physikprofessor und kurfürstliche Hofastronom Christian Mayer wies mit seinen Messungen und Berechnungen an der Sternwarte die Existenz physischer Doppelstene nach. Er erkannte, dass die von ihm "Fixsterntrabanten" genannten Sternsysteme durch ihre gegenseitige Massenanziehung aneinander gebunden sind und um ihren gemeinsamen Schwerpunkt kreisen. Damit gelang ihm 1777 eine der ersten bedeutenden Entdeckungen der Stellarastronomie.
The Jesuit priest, physics professor and electoral court astronomer Christian Mayer demonstrated the existence of physical double stars with his measurements and calculations at the observatory. He recognized that the star systems, which he called "fixed star satellites", are bound to one another by their mutual mass attraction and orbit around their common center of gravity. In 1777 he made one of the first important discoveries in stellar astronomy.
Erected by Metropolregion Rhein-Neckar and Kurpfälzer Meile der Innovationen.
Topics. This historical marker is listed in
this page online
Location. 49° 29.078′ N, 8° 27.725′ E. Marker is in Mannheim, Baden-Württemberg. It is in Quadrate. Marker is on Bismarckstraße west of Kurpfalzstraße, on the left when traveling west. The marker is located along the sidewalk in front of the University of Mannheim. Touch for map. Marker is at or near this postal address: Bismarckstraße 14, Mannheim BW 68161, Germany. Touch for directions.
Other nearby markers. At least 8 other markers are within walking distance of this marker. Johann Jakob Hemmer (here, next to this marker); Wolfgang Amadeus Mozart (here, next to this marker); Friedrich Schiller (here, next to this marker); Die Mannheimer Schule / The Mannheim School (here, next to this marker); Heidelberger Romantik / Heidelberg Romanticism (a few steps from this marker); Kurfürst Karl Ludwig Von Der Pfalz (a few steps from this marker); Karl Friedrich Drais (a few steps from this marker); Wege zur Demokratie / Paths to Democracy (a few steps from this marker). Touch for a list and map of all markers in Mannheim.
More about this marker. The bronze plaque is one of 42 plaques set up along the “Electoral Palatinate Mile of Innovations” in front of Mannheim Palace.
Also see . . . Double stars 1776. Kurpfälzer Mile of Innovations
Instead(Submitted on February 27, 2024, by James Hulse of Medina, Texas.)of traveling on to Marseille as planned, Mayer preferred to buy a pendulum clock with his remaining travel money and ordered a protractor from the instrument maker Canivet, with which the meridian passages and culmination heights of celestial bodies could be measured. In the fall of 1758, the quadrant arrived in Heidelberg, and Mayer was able to use it the following year to observe the return of the "Great Comet" announced by Edmond Halley.Photographed By James Hulse, February 20, 20242. The view of the Christian Mayer Marker along the street
Credits. This page was last revised on February 27, 2024. It was originally submitted on February 27, 2024, by James Hulse of Medina, Texas. This page has been viewed 48 times since then. Photos: 1, 2. submitted on February 27, 2024, by James Hulse of Medina, Texas.
