Last days there were no conventional clouds in Buenos Aires´sky, but still the Sun it appeared strange and dim, specially when its low in the sky. The cause is the giant ash cloud that covers a big part of Argentina, originated in the recent eruption of volcan Puyehue, Chile. This photo was taken yesterday (June 13th) at 5.10 local time, with the Sun only 6° over horizon. There were not water clouds in the sky. There were ashes clouds. So, it was an "ashen Sun"