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Ultraviolet Coronal Line of Fe XII

Ultraviolet Coronal Line of Fe XII

Date: 22 December 1996
Satellite: SOHO
Depicts: Coronal Emission

Four images from the EIT instrument, taken in the ultraviolet coronal line of Fe XII, are shown in this image. Cool material (darker shades) ascends from the solar surface (20:32 UT) to form a loop like structure (20:41 UT), which explodes, reaching an altitude of 300 000 km in just 12 minutes. At 20:53 UT the material has accelerated to a velocity of 400 km per second. The cool material pushes a hot coronal shockwave seen as a ring of brighter material.
Last Update: 1 September 2019
19-Oct-2021 21:39 UT

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