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March 18, 2019: Sun in WL and Ca-K, at last


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After a long absence, finally some solar images once more. Only Ca-K and WL, and just the one little AR, but pleased to be back in the saddle

WL, grey level:

Sun_160249_lapl4_ap449LR.thumb.jpg.06ee1f35b43d7fac00c6f194bee9bd5c.jpg

WL, pseudo colour:

Sun_160249_lapl4_ap449LRcolour.thumb.jpg.9fcff43bceaf7d1e7413ef3c25e4f137.jpg

Ca-K, grey level:

Sun_160623_lapl4_ap449LR-c.thumb.jpg.587b19f81f9c1a08c031d2c758c0d5a3.jpg

Ca-K, pseudo colour:

Sun_160623_lapl4_ap449LR-ccolour.thumb.jpg.59bb0d11aac6600d725351b303a60130.jpg

Ca-K, part inverted:

Sun_160623_lapl4_ap449LR-pinv.thumb.jpg.d4b311f035169ecb8c9533d498577ae5.jpg

Ca-K, part inverted + pseudo colour:

Sun_160623_lapl4_ap449LR-pinvcolour.thumb.jpg.0b595be0184c63586a8fa56afe1b8061.jpg

Some very, very faint hints of proms visible in the latter two images. All captured with my APM 80mm F/6 triplet and ASI178MM camera. Lunt Herschel wedge with Solar continuum filter and UV/IR block for WL, Lunt B1800s Ca-K module for the Ca-K.

 

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