Tuesday, May 7, 2013

Sunspots prominences and blending narrowband solar images

A DMK21AS camera fitted with a 2.5x Barlow was attached to a Solarmax ll 60 BF15 H-alpha scope.
Sunspot AR1734 was imaged along with a nearby prominence:


In the image above, a flare was taking place close to the sunspot and had subsided by the time the image below was captured.


An Opticstar PL-130M 1.3 MP monochrome, CMOS camera was placed at the prime focus of a Solarmax ll BF 15 H-alpha solar scope and a 6 minute AVI was captured at 8fps, exposed for the solar disk. The process was repeated exposed for the prominences. Then the process was repeated with a Ca K-line CaK PST solar scope. The three resulting images were combined to produce an image showing the features revealed by H-alpha and Ca K-line:

H-alpha disk and prominences combined:


Ca K-line image


H-alpha and Ca K-line combined


Steve Wainwright

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