CORONAL LOOPS AND PROMINENCES AS OBSERVED WITH RATAN-600

This paper presents a short summary of observations of coronal structu res at microwaves using an instrument with high spatial resolution and good wavelength coverage. The comparison of the RATAN-600 data with o ptical observations of coronal loops in the green line and with the Ve ry Large Array maps at 21 cm has shown that the loops represent only a small part of coronal matter, although their role may be of great imp ortance in the physics of the solar corona. Prominence (filament) asso ciated sources, especially ''peculiar'' ones, are also reviewed.