http://lasco-www.nrl.navy.mil/
http://sohowww.nascom.nasa.gov/data/LATEST/
http://en.wikipedia.org/wiki/Large_Angle_and_Spectrometric_Coronagraph
The Large Angle and Spectrometric Coronagraph (LASCO) is one of a number of instruments aboard the Solar and Heliospheric Observatory satellite (SOHO). LASCO consists of three solar coronagraphs with nested fields of view.
