The 2-meter telescope is housed under a dome weighing approximately 260 tons.
The observatory was officially inaugurated in 1981.
It is one of the darkest locations in Bulgaria, minimizing light pollution for deep-space observations.
The facility is capable of tracking near-Earth asteroids and performing high-resolution spectroscopy.
The altitude of 1,750 meters provides a high frequency of clear-sky nights, critical for long-exposure imaging.
The observatory was a collaborative effort involving Bulgarian scientists and precision engineering from the former Carl Zeiss Jena in Germany.
The Rozhen National Astronomical Observatory is the largest ground-based astronomical facility in Southeast Europe, situated at an altitude of 1,750 meters on the peak of Saint Spirit in the Rhodope Mountains. It functions under the Institute of Astronomy at the Bulgarian Academy of Sciences. The facility features a 2-meter Ritchey-Chretien-Coude telescope, the largest of its kind in the Balkans. It serves as a primary site for both professional astrophysical research and public astronomical education. The site includes a visitor center with a planetarium dome for public screenings. It is located 15 kilometers from the town of Chepelare and near the Rozhen mountain pass.
The exterior viewing platform overlooking the Rhodope mountain range near the entrance.
Bring warm, wind-resistant clothing even in summer, as temperatures drop significantly at night on the mountain peak.
Check the official website for current public lecture schedules, as these vary by season and weather conditions.
Wear comfortable, sturdy walking shoes for navigating the paths around the telescope domes.
Do not attempt to visit during severe winter storms, as mountain road conditions to the peak can become impassable.
Public tours and planetarium shows typically operate on a schedule that excludes certain weekdays; advanced online booking or checking the website is recommended.
Maintain quiet during observation periods; avoid using flash photography inside the telescope domes.
