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April 27, 2021: Back in the saddle in WL and CaK

michael.h.f.wilkinson

By michael.h.f.wilkinson
in Imaging - Solar

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michael.h.f.wilkinson

michael.h.f.wilkinson

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What with it being the King's birthday and bright sunshine, I finally got back to solar imaging with the APM 80mm F/6 triplet, and Beloptik tri-band ERF, allowing me to capture white light, Ca-K, and H-alpha (which I will post later), by inserting either the Lunt Herschel wedge, Lunt Ca-K module, or the Solar Spectrum filter in the rear.

WL, grey scale

Sun_105701_lapl4_ap622LR.thumb.jpg.53d5d45f5fd756a6610fcbfd4df82e87.jpg

WL, pseudo colour

Sun_105701_lapl4_ap622LRcol.thumb.jpg.881430b27fcd437fd7cb3322b0b72b5d.jpg

Ca-K, grey scale

Sun_110215_lapl4_ap622LR.thumb.jpg.5aad9d0829233f05ab6533d2c3ac7fd0.jpg

Ca-K, pseudo-colour

Sun_110215_lapl4_ap622LRcol.thumb.jpg.7c27609c244152bae56d2c0141969ef6.jpg

Ca-K part inverted

Sun_110215_lapl4_ap622LRpinv.thumb.jpg.dc6a5a5d51252a9fe8d374147b920e55.jpg

Ca-K, part inverted + pseudo-colour

Sun_110215_lapl4_ap622LRpinvcol.thumb.jpg.57c7bad2ef6183cdd40548fbbcd370c9.jpg

Note the ghostly proms visible in the latter. All are stacks of 200 out of 1000, shot with the ASI178MM

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