Milky Way Trail
The Milky Way Trail approaches the Effelsberg Radio Telescope from the south. It starts in the small village Burgsahr, part of the Kirchsahr municipality and leads directly to the visitors’ pavilion of the Effelsberg station. It is a fascinating trip through the Milky Way, our home galaxy, on a walk of 4 kilometres total length.
The Milky Way Trail was built as a cooperative project between the Max Planck Institute for Radio Astronomy and the Freundeskreis Sahrbachtal. The logo for the Milky Way Trail is a red telescope on a white background:
Here a link with trekking information on the Milky Way Trail:
The information presented at 19 stations of the Milky Way Trail is compiled in the following:
The Milky Way Trail displays the distances between a number of cosmic objects in our Milky Way galaxy scaled 1: 1017 (1 : 100 quadrillions), corresponding to 10,000 light years per kilometre. At that scale our Milky Way would have a total diameter of 10 kilometres, the distance of 25,000 light years between the Earth and the centre of the Milky Way becomes 2.5 km in scale.
Each panel displays the position of the target described and the Earth, within our Milky Way on an edge-on image of 12.5 cm diameter (scale 1: 8 x 1021 or 1 : 8 sextillions) in the upper left. Across the complete length of 4 kilometres there is a total of 18 stations from IC 410 in the outer rims of the Milky Way right to the Galactic Centre. Two additional stations add a long distance component. No. 19, the Andromeda Galaxy M31 is located since 2014 at the “Haus der Astronomie” (HdA) on the Königstuhl mountain near Heidelberg, its real distance of 2.5 million light years corresponding to 250 kilometers at the scale of the Milky Way Trail. In 2021, no. 20, galaxy NGC 205 (M110), a companion of M31 in the Andromeda system, has been installed at the Planetarium Mannheim, (19 km or 190,000 light years away from the HdA):
Station “Andromeda Galaxy” at HdA, MPIfR Announcement, May 07, 2014
The Mannheim Planetarium is now part of the Milky Way Trail, MPIfR announcement, December 20, 2021