Measurements and predictions of the illuminance during a solar eclipse
- Measurements of illuminance during a solar eclipse are presented. The data are compared to theoretical predictions, based on a geometrical model for obscuration. The model assumes a straight and uniform motion of the sun and moon as well as a spherical shape of both, i.e. it neglects any effects of limb darkening. Furthermore, the sun's disk is assumed to have homogeneous luminosity, i.e. any luminosity variations due to sun spots are neglected. Input parameters are the duration of the eclipse,Measurements of illuminance during a solar eclipse are presented. The data are compared to theoretical predictions, based on a geometrical model for obscuration. The model assumes a straight and uniform motion of the sun and moon as well as a spherical shape of both, i.e. it neglects any effects of limb darkening. Furthermore, the sun's disk is assumed to have homogeneous luminosity, i.e. any luminosity variations due to sun spots are neglected. Input parameters are the duration of the eclipse, the duration of totality, the impact parameter, i.e. the distance between the two trajectories of sun and moon, and the sizes of sun and moon. The model applies to all types of eclipses, partial, annular and total.…
Author: | Klaus-Peter MöllmannGND, Michael VollmerGND |
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Parent Title (English): | In: European journal of physics 27 (2006), 1299-1314 |
Document Type: | Article |
Language: | English |
Year of Publishing: | 2006 |
Date of Publication (online): | 2013/11/19 |
Release Date: | 2013/11/19 |
First Page: | 1299 |
Last Page: | 1314 |
Institutes: | Fachbereich Technik |
University Bibliography: | Hochschulbibliografie |
Licence (German): | Creative Commons - Namensnennung, Nicht kommerziell, Keine Bearbeitung |