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Solar Prominences with DMK 21AU618.AS

25 Mar 2013, 23:00 UTC
Solar Prominences with DMK 21AU618.AS
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Here are a couple temporal studies from 11 March 2013 of an activated prominence on the eastern limb and a quiescent polar crown prominence on the southwestern limb. Relatively good seeing allowed quite a bit of fine structure to be recorded at 2.5ms shutter speed @ 60 frames / second with a 100mm aperture refractor, Daystar 0.8A H-alpha ION filter and DMK 21AU618.AS. The time-lapse animation of the quiescent prominences covers 40 minutes.

Jim Ferreira, Livermore, CA, http://www.lafterhall.com/astro.html

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