Translucent Filament And An Emerging Active Region
Taken by Viljo Nylund on August 30, 2012 @
Finland
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Camera Used: Unavailable Unavailable
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Details:
I waited for the filament to become fully visible from behind the limb and as a bonus there appeared a new smoldering active region also. The AR had minor flaring a few minutes later. I expected to capture the filament in a stronger 3D look, but this time it was flatter, thinner and nicely transparent.
The see-through filament was imaged in H-alpha wavelength on August 30, 2012 at 08:12 UT and inverted to show the surface details in a more 3D like view.
The image was captured at 2220 mm FL, using a SW150 refractor, rear H-alpha etalon filter, internal 110 mm ERF filter, Coronado BF10, Basler acA1300-30gm camera. Imaged at my Photon Collector Observatory in southern Finland.
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