Almost blank Sun in Halpha
Taken by Sylvain Weiller on February 23, 2015 @
SAINT-RÉMY-LES-CHEVREUSE
IDF, FRANCE
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Camera Used: Unavailable Unavailable
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Details:
Conditions were rather stable this morning. Time to make a new scan trial : today I used the rotation of the Earth to provide the smoothest scan !!
Sun is with N at top. Posted at 50%.
See http://sweiller.free.fr for the original size and all explanations.
Photographer's website:
http://sweiller.free.fr
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