Completed on February 7th, 2023 in cooperation with Municipality Dolna Mitropolia and Municipal center for extracurricular activities and Department of Astronomy, Sofia University « St. Kliment Ohridski ».
Completed on February 7th, 2023 in cooperation with Municipality Dolna Mitropolia and Municipal center for extracurricular activities and Department of Astronomy, Sofia University « St. Kliment Ohridski ».