On Filter Observations of Coronal Structures in the Light of FeX 6374 Angstrom Emission Line
Abstract
The red coronal line of Fe X (6374 Å) seems to be extremely suitable for filter observations due to reduced sky scattering in this spectral interval and absence of blending by Fraunhofer lines. Comparative analysis of location of Hα structures in colour and black-white pictures of the solar corona of July 11, 1991 was carried out. Care should be taken when interference filters are used for the red corona observations. Estimations of parameters of an interference filter for the reliable red coronal observations are presented.
- Publication:
-
IAU Colloq. 144: Solar Coronal Structures
- Pub Date:
- 1994
- Bibcode:
- 1994scs..conf..575G
- Keywords:
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- Solar Corona: Methods of Observation;
- Solar Corona: Iron Lines;
- Solar Corona: Solar Eclipses;
- Solar Eclipses: 1991 July 11;
- Solar Corona: Structure