Lomnicky Stit Observatory

Iniciated by the world-wide activity of the International Geophysical Year 1957 construction of a coronal station on the Lomnicky peak (1957-1962) was realized. Here, at really a high-altitude height of 2 632 meters above sea level, a 20 cm coronagraph (f=4m) was installed starting first observations of the coronal emission lines, originating in the solar corona, in 1964. In 1970 an identical telescope for observations of prominences was installed in the same dome. Today, the coronal station ranks among just few existing stations worldwide which systematically observe emission spectral lines of the corona. Researchers working at the Lomnicky peak observatory has prepared and maintain two long-term data sets fo the solar coronal activity. The Homogeneous Data Set of the Green Coronal Emission Line Instesities is compiled from the data of all coronal stations over the world since 1939. The Green Coronal Index is prepared on the base of the previous data as well. The Cataloue of the Solar H alpha Prominences is prepared on measurements performed at the observatory itself.

At the peak of the Lomnicky stit mountain there is also located Neutron Monitor of the Department of Space Physics (Institute of Experimental Physics, Kosice, Slovakia). This instrument is continually in operation since December 1981 when it replaced the older one.

Hereafter some pictures of the Lomnicky Stit Observatory and its instrumentation are given.

Lomnicky Stit mountain and Skalnate Pleso lake	Dome of the observatory
Coronagraphs at the Lomnicky Stit Observatory	Post-focal equipment of the coronagraphs
Assistant Karol Manik adjusting spectrograph	Assistant Karol Manik performing measurements

Coordinates: Longitude: 20° 13' 12" East, Latitude: 49° 11' 48" North, Altitude: 2 632 meters above sea level