Astro-German philosophy, or German Astronism, refers to the presence of Astronism in the Federal Republic of Germany under management and philosophical jurisdiction of The Institution of The Philosophy of Millettism for the Federal Republic of Germany, a national subsidiary for the worldwide Astronist Institution. The Institution of the Philosophy of Millettism for the Federal Republic of Germany oversees the construction and maintenance of observatories and planetariums throughout its jurisdiction. Germany is split into sixteen federal states and is set to hold one Grand Observatory in the capital city of Berlin. 

This national branch of The Institution of The Philosophy of Millettism manages the official representation and depiction of Astronism throughout this territory, including efforts to protect the identity of the philosophy with the intention of further disseminating it throughout the territory. It is The Institution alone that is granted the status of proprietor to the philosophy in this territory as any other organisations or institutions proclaiming such a role are deemed as unauthorised proprietors and are therefore considered as part of the anti-Institutionist movement. 

History of Astronism in Germany

Astronism is not presently recognised as a religion in Germany and the number of Astronists in the republic were numbered at 45,000 as of November 2019. The extent to which Astronist content has been translated into German is minimal which highlights an inability for Astronism to grow in the country beyond is current restricted reach. Astronist religious liberty in Germany has been labelled as apathetic and Astronists are generally considered to be free to profess their faith publicly in Germany without fear of incident or repression.