Location & approach

By car

The TU Dortmund campus is located near the Dortmund West motorway junction, where the Sauerland line A45 crosses the Ruhr expressway B1/A40. The Dortmund-Eichlinghofen exit on the A45 leads to the South Campus, while the Dortmund-Dorstfeld and -Barop exits on the A40 lead to the North Campus. The university is signposted at the exits. There is a charging station for electric cars on the North Campus, Vogelpothsweg.

By bus and train

The Dortmund University S-Bahn station is located directly on the North Campus. From there, the S1 S-Bahn line runs every 15 or 30 minutes to Dortmund Central Station and in the opposite direction to Düsseldorf Central Station via Bochum, Essen, and Duisburg. The university can also be reached by bus lines 445, 447, and 462. Timetable information can be found on the Rhine-Ruhr Transport Association website, and DSW21 also offers an interactive route map.

H-Bahn

One of the landmarks of TU Dortmund University is the H-Bahn. Line 1 runs every 10 minutes between Dortmund Eichlinghofen and the Technology Center via Campus South and Dortmund University S, while Line 2 runs every 5 minutes between Campus North and Campus South. It covers this distance in two minutes.

By plane

From Dortmund Airport, the AirportExpress takes you to Dortmund Central Station in just over 20 minutes, and from there you can take the S-Bahn to the university. A wider range of international flights is available at Düsseldorf Airport, around 60 kilometers away, which can be reached directly by S-Bahn from the university station.

Plan of site & interactive map

The facilities of TU Dortmund University are located on two campuses, the larger North Campus and the smaller South Campus. In addition, some university facilities are located in the adjacent Dortmund Technology Park as well as in the city center and the wider urban area.

> Go to interactive map

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Location & approach

By car

The TU Dortmund campus is located near the Dortmund West motorway junction, where the Sauerland line A45 crosses the Ruhr expressway B1/A40. The Dortmund-Eichlinghofen exit on the A45 leads to the South Campus, while the Dortmund-Dorstfeld and -Barop exits on the A40 lead to the North Campus. The university is signposted at the exits. There is a charging station for electric cars on the North Campus, Vogelpothsweg.

By bus and train

The Dortmund University S-Bahn station is located directly on the North Campus. From there, the S1 S-Bahn line runs every 15 or 30 minutes to Dortmund Central Station and in the opposite direction to Düsseldorf Central Station via Bochum, Essen, and Duisburg. The university can also be reached by bus lines 445, 447, and 462. Timetable information can be found on the Rhine-Ruhr Transport Association website, and DSW21 also offers an interactive route map.

H-Bahn

One of the landmarks of TU Dortmund University is the H-Bahn. Line 1 runs every 10 minutes between Dortmund Eichlinghofen and the Technology Center via Campus South and Dortmund University S, while Line 2 runs every 5 minutes between Campus North and Campus South. It covers this distance in two minutes.

By plane

From Dortmund Airport, the AirportExpress takes you to Dortmund Central Station in just over 20 minutes, and from there you can take the S-Bahn to the university. A wider range of international flights is available at Düsseldorf Airport, around 60 kilometers away, which can be reached directly by S-Bahn from the university station.

Plan of site & interactive map

The facilities of TU Dortmund University are located on two campuses, the larger North Campus and the smaller South Campus. In addition, some university facilities are located in the adjacent Dortmund Technology Park as well as in the city center and the wider urban area.

> Go to interactive map

ServicePortal UniMail

Field of activity image signal processing

On the trail of comet dust

10/28/2025

C. Wöhler and Portable Newtonian reflector with polarizing camera — Christian Wöhler und portabler Newton-Reflektor mit Polarisationskamera auf dem Ballon d‘Alsace

In the field of image signal processing, Prof. Christian Wöhler regularly measures the polarization of comet dust. C/2025 A6 (Lemmon) is currently approaching Earth. Processing the recently acquired image data should provide information about the size, structure, and chemical composition of the comet dust and ultimately offer insights into the primordial matter of our solar system.

The bright comet C/2025 A6 (Lemmon) is currently moving across the northern sky and can be easily observed with binoculars or a small telescope shortly after sunset and shortly before sunrise. Since Fred Whipple's groundbreaking research in the 1950s, comets have been referred to as “dirty snowballs.” According to this description, they are relatively loosely bound, irregularly shaped bodies up to about 20 kilometers in size, consisting of water ice and other frozen gases, silicate dust and rock, and organic compounds with a high carbon content. They formed 4.6 billion years ago from the material of the same interstellar gas and dust cloud in which the Sun and the planets of our solar system formed at the same time.

Almost all comets orbit far outside the orbits of the large planets around the Sun, where they have not changed significantly since their formation. Therefore, the material they are made of is very similar to the original material of the solar system and provides deep insights into its formation. Only occasionally is a single object deflected into the inner solar system by the gravitational pull of the large planets, where it then moves along an orbit that brings it close to the Sun and Earth at regular intervals. For Comet Lemmon, this happens about every 1,200 years. This comet will only be observable for a short time until the end of October and will not return to Earth in our lifetime.