Large Angle and Spectrometric Coronagraph

The Large Angle and Spectrometric Coronagraph (LASCO) on board the Solar and Heliospheric Observatory satellite (SOHO) consists of three solar coronagraphs with nested fields of view:C1 - a Fabry–Pérot interferometer coronagraph imaging from 1.1 to 3 solar radii
C2 - a white light coronagraph imaging from 1.5 to 6 solar radii (orange)
C3 - a white light coronagraph imaging from 3.7 to 30 solar radii (blue)


The Large Angle and Spectrometric Coronagraph (LASCO) on board the Solar and Heliospheric Observatory satellite (SOHO) consists of three solar coronagraphs with nested fields of view:C1 - a Fabry–Pérot interferometer coronagraph imaging from 1.1 to 3 solar radii C2 - a white light coronagraph imaging from 1.5 to 6 solar radii (orange) C3 - a white light coronagraph imaging from 3.7 to 30 solar radii (blue)
Read article on Wikipedia