The Astronomisches Rechen-Institut ("Astronomical Calculation Institute "), or ARI, is currently part of the Zentrum für Astronomie ("Center of Astronomy") of the University of Heidelberg.
The Astronomisches Rechen-Institut ("Astronomical Calculation Institute "), or ARI, is a research institute in Heidelberg, Germany. The ARI is currently part of the Zentrum für Astronomie ("Center of Astronomy") of the University of Heidelberg.