sh2-49: eagle nebula

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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.

sh2-49 eagle nebula: Ha preview

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:

M16 / Sh2-49 Eagle Nebula in SHO
imaging cameraZWO ASI 1600MM Pro
guide cameraZWO ASI290mm Mini
mountSkywatcher EQ6-R pro
telescopeExplore Scientific ED102 APO
exposure settingsOptolong Ha 7nm 1.25″ filter
exposure: 300s
gain: 139
cooling: -15C
stacking50 Ha lights
50 SII lights
50 OIII lights
30 darks
30 flats
30 flat darks
imaging session details

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