I decided to image the eagle nebula next. I was able to get about an hour of Ha data last night as I wrapped up the elephant trunk nebula.
I had a couple clear nights in a row and was able to capture 50 300s subframes in each Ha, SII, OIII. I applied a dynamic background extraction to each channel as well as a contrast boost before running pixel math to generate the SHO image.
Here is a zoomed in crop of the central nebula region:
|imaging camera||ZWO ASI 1600MM Pro|
|guide camera||ZWO ASI290mm Mini|
|mount||Skywatcher EQ6-R pro|
|telescope||Explore Scientific ED102 APO|
|exposure settings||Optolong Ha 7nm 1.25″ filter|
|stacking||50 Ha lights|
50 SII lights
50 OIII lights
30 flat darks