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June 16, 2017: Slightly better Ca-K proms


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Reprocessed the 4000-frame Ca-K I captured this morning, stacking no fewer than 3000 frames. I altered the stacking parameters to optimise the faint proms. They are still faint, but the noise is lower.

Part inverted:

Sun_075326_lapl4_ap822LR3000pinv.thumb.jpg.c882c729825cddc63a1f9d7e0e524086.jpg

 

Some smaller proms also came out nicely

Part inverted + pseudo colour:

Sun_075326_lapl4_ap822LR3000pinvcolour.thumb.jpg.c4c4e1fae9538a6cd6c152a8fef08676.jpg

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