Εθνικό Αστεροσκοπείο Αθηνών - Αστεροσκοπείο Χελμού

Helmos Observatory is located on mount Helmos in the Northern Peloponnese at an altitude of 2340 m.
The facilities at Helmos Observatory include the dome building, which hosts the telescope, the telescope control and guest house building, a dome housing the small telescope used for atmospheric monitoring, as well as the building that hosts the electrical power equipment and the supporting power generators.
The Aristarchos telescope (Ritchey-Chretien design) was constructed by the German company Carl Zeiss GmbH and was inaugurated in the summer of 2007.