The sector "Sun" was founded in 1985 by Vladimir
Dermendjiev as Solar Physics section in the Department of
Astronomy (now Institute of Astronomy) at the Bulgarian Academy
of Sciences in Sofia.
Location Longitude: 24° 44' 38'' Latitude: 41° 41' 35'' Altitude: 1759 m
In 1992-1993 a Solar Station with 8-meter dome at the Rozhen National Astronomical Observatory was built. It is equipped with a 15-centimeter photosphere telescope. A 15-centimeter Lio-coronagraph for the solar corona and prominences observations is under construction. The big altitude and daytime sky quality, both in terms of transparency and seeing, of observatory region allow observations both the solar disk and the solar corona.
Sunspot, active regions and white-light flare monitoring. Processing of photographic images with automated microdensitometer Joyce Loebl in NAO-Rozhen.