The diplomatic relations of the Astronist Institution, officially known as parenic relations, refers to the relations between the proprietor of the religion of Astronism and various external entities, namely governments, other religious institutions, corporations, and non-governmental organisations. Such relations are conducted by the Astronist Institution under the identity, role, and function of Astronia, the transnational country formed by the Astrosa, the worldwide community of Astronists, to form the world's first surexistential state.
The discipline of study dedicated to dealing with the parenic relations of the Astronist Institution is known as parenology, or as parenics.
Although the Astronist Institution is the proprietor over the Astronist religion, the two entities remain distinct from one another, both in their natures and functions. The Astronist Institution remains the principal, sovereign and omnidoxically-authorised representative of Astronism under its official title of proprietorship.