Sternwarte Neanderhöhe Hochdahl, Public observatory in Erkrath, Germany.

The Sternwarte Neanderhöhe Hochdahl is a public observatory in Erkrath with several observation towers on Sternwartenweg at the eastern edge of Hochdahl. Its Stellarium Erkrath planetarium in the Bürgerhaus Hochdahl seats 62 people and uses five Full-HD video projectors to light the entire dome. The site also houses optical and metal workshops, a photo lab, a sound studio, a radio station DK0NH, and a lecture room.

The public observatory was founded in 1967 by a group of amateur astronomers. In 1978 the association created the Volksbildungszentrum für Weltraumkunde to obtain state funding for its adult education courses, and membership quickly doubled to over a thousand. The Stellarium Erkrath planetarium has operated in the Bürgerhaus Hochdahl since 1980; after a fire in July 2007 it reopened in spring 2008 with a digital full-dome system.

The place draws astronomy enthusiasts who gather here to observe and share their interest in the sky. Programs are designed for people of all ages wanting to understand more about the stars and space.

A visit is best timed when skies are clear and starlight is not obstructed by clouds. Check the observatory's website for current opening times and what programs are running during your planned visit.

In 1970 the club showed Moon rock from the Apollo 11 and Apollo 12 landings at its training centre on Hildener Straße, the first time such material was displayed in Europe. The planetarium's digital system replaced the old star projector after a fire in July 2007.