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Huge solar prominence close-up in h-alpha

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Published on Feb 10, 2013

The animation represent a close up portion of the sun of 8 February with the evolution of a huge prominence during an hour of observation. Images taken with a 100 ed refractor using a Daystar h-alpha filter at a focal of 2300mm, I reduced the focal a little to let it be whole inside the camera.

When I saw this huge prominence I decided to make a time-lapse of its tiny movements; this ones was very slow and gave me the opportunity to take long exposures for each frame. I used 1 minute of capture for each frame, but after finishing the animations I'm wondering if it could be better reduce it to a little to have a better composition of few faster inner movements.

My intention was then to make few close-up animations of the more interesting formations but clouds arrived just after the first capture session. I will try few post-pocessing close-up, stay tuned.

Movie produced by Paolo Porcellana
Backyard Video Astronomy

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