It's a world class observatory with over 600 members. It's in the middle of Munich, and a four-meter focal length is no big deal. It's the Volkssternwarte.
The Volkssternwarte is built inside a former WWII bunker, and the thick concrete walls mean a very stable rooftop for the telescopes. One of the members even showed us how the concrete is reinforced with railroad tracks, due to steel shortages during the war.
Before we look at the telescopes, we are invited to take a look at Germany's smallest planetarium! It seats no more than 15 people in a small dome maybe two meters wide. The setup is totally mechanical, that means the operator needs to manually insert cartridges that project the planets and constellations to the right part of the sky, depending on the season. Emil produced an awesome 360 picture of the room. It looks like we're all on a globe!
The sky darkens, and we head upstairs. We observe Jupiter, then Saturn, M82, and the double star Alberio. Brendan gets his start in astrophotography by hooking his iPhone up to a 100 year old refractor. Then, Tobias, one of the members, unpacks his camera and shows us what a proper DSLR can see: the last image is an actual picture of Andromeda that Tobias took this evening, from the center of Munich!
Volkssternwarte is situated directly above a nightclub. As we leave for the evening, people in their best dress are partying and yelling. It reminds us of South Street. I suggest that maybe sometimes the astronomers can set up a telescope on the sidewalk...