Astronomy and Astrophysics – Astronomy
Scientific paper
Aug 1999
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999raav.confe...7d&link_type=abstract
Research Amateur Astronomy in the VLT Era, Solar Eclipse August 1999 Symposium held at ESO, Garching, Germany, August 7-13, 1999
Astronomy and Astrophysics
Astronomy
Scientific paper
Two selected experiments carried out during the total solar eclipse on February 26, 1998 observed at Guadeloupe are described in the paper. In the first experiment, images of the corona in the infrared part of the spectrum were recorded by using the CCD ST-7 camera and a camera lens 2.8/80 mm. A red RG8 filter was placed in front of the objective. This experiment was realized to reveal the inner border of solid dust particles around the Sun, which is theoretically expected at about 5 solar radii. In the second experiment, the white-light corona was photographed on KODAK 100 colour negative cine-film by the camera PRAKTICA MTL 50. The negative image was digitalized and processed further by an image processing software. Thus we can detect structures of the white-light corona to a distance of more than 30 solar radii. These experiments are suitable for small instruments and have low financial requirements.
Dorotovič Ivan
Lukáč B.
Minarovjech Milan
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