IC405 and IC410 v2.2 HaRGB
Celestron AVX + Skywatcher Esprit 80 + ZWO ASI1600MM-C + ZWO RGB filters + Astrodon 3nm Ha filter
30x 120s Ha and 20x 60s each RGB
Processed in PI, PS (colour) and Lightroom (final adjustments)
v2.2: reprocessed RGB to apply another round of background extraction, using many large points, to remove the more complex gradients, particularly in the blue channel. Combined using the HaRGB combination script, putting 66% of Ha into R and 33% of R into Ha. Blended the resulting two images using lighten mode.
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