The sun seen in hydrogen-alpha light on September 19,2012. Photographed with a Lunt Solar LS60 Scope/LS50 Hydrogen Alpha Solar filter; Canon Rebel Xsi & ISO 400,1/3 sec exp for prominences; 1/54 sec for surface details | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Chumack, John |
Taille de l’image : | 2700 px × 1955 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : |
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