Skinakas Observatory, Research astronomical observatory on Psiloritis Mountain, Greece

Skinakas Observatory is a research facility housing three telescopes at 1750 meters elevation on Mount Psiloritis. The main instrument is a 1.3-meter telescope configured for diverse astronomical observations.

The University of Crete and the Foundation for Research and Technology established the facility in 1984, with scientific operations commencing in 1986. This founding made Crete a key center for astronomical research in the Eastern Mediterranean.

The observatory's guesthouse was renamed "Ioannis Papamastorakis Guest House" on 29 September 2019, honouring the professor who conceived the site in 1984 and directed it until 2009. The ceremony marked 35 years since the founding and 10 years since his retirement. The 200 m² stone guesthouse, finished in 1988, hosted Greece's first school of Observational Astrophysics.

Access is via a paved mountain road from Heraklion, and the site can be visited during favorable weather conditions. Guided visits and telescope viewing sessions happen during select periods between June and September.

The facility conducts coordinated observations in partnership with the Max Planck Institute for Extraterrestrial Physics, working with orbital X-ray telescopes like XMM-Newton. This international collaboration allows simultaneous studies of cosmic events from this mountain location alongside space-based instruments.