2017 September 12 Sun - AR12679 farewell with an arch prominence
AR12679 is right on the W limb and show off with a minor eruption from 02:55 to 03:22 UTC. This short movie is compiled from 96 frames and demonstrates the formation of a loop prominence.
Telescope: AP Starfire EDT 155 mm f/9.
stopped to 50 mm (f/28) for disc images, with 4X telecentric lens (f/36) for closeups
filter: Solar Spectrum SO1.5/0.3A with CERF prefilter
Camera: Imperx 4M15
2017 September 12 Sun - AR12679 farewell with an arch prominence
2017 September 12 Sun - AR12679 farewell with an arch prominence
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