Fig. 2.
Prominence observed on 13 September 2008 at 11:48−13:40 UT at position angle 229°. Upper image: intensity at the centre of the He I D3 5875.6 Å line. Lower image: intensity at the centre of the hydrogen Hα line. The bottom of the image is parallel to the solar limb. The warm colours (yellow, red) indicate the highest intensities, which are located at the solar limb.
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