Structure and flattening of the solar corona

In this work, preliminary results of the investigation of the white-light coronal structure and the measurement of flattening parameters are presented. They were obtained using photographic eclipse observations performed during the total solar eclipse of March 29, 2006, in Ilica, Antalya, Turkey. This eclipse practically coincided with the minimum of the 23rd solar cycle. Ludendorff flattening parameters were computed as a function of the distance from the disc centre. The results obtained within the range between 1.1 and 1.83 solar radii seem to be in satisfactory agreement with previous works by Saito (1956), Hata & Saito (1966) and Gulyaev et al.(1994).