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3D view of a CME heading towards Earth

A CME similar to the one on the previous page, heading almost directly towards Earth, observed by LASCO C2. The size of the Sun is indicated by a circle, and the x-marked circle on the Sun shows the origin of the CME. Panel a shows the total intensity (darker means more intensity) as imaged directly by LASCO. Only the narrow lower end of the "lightbulb" shape is visible - the widest portion has expanded beyond the field of view, whereas the front part and the core are too dim to be seen or hidden behind the occulter. Panel d is a topographic map of the material shown in panel a. The distance from the plane of the Sun to the material is colour coded - the scale in units of solar radii is shown on the side. Panels b and c show the intensity as it would have appeared to an observer positioned to the side of the Sun or directly above it, respectively.

Picture credits: SOHO/LASCO (ESA & NASA) and Thomas Moran
Instrument: LASCO (Large Angle and Spectrometric Coronagraph)

Last modification: July 09, 2004
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