sh2-131: elephant trunk nebula

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Here is my SHO processed image of the elephant trunk nebula. It took me over two weeks to capture this due to an unusually large dust cloud that crossed the atlantic from the sahara desert and then a series of storms in the southeast USA.

Here is a look at the Ha, Sii, Oiii data gathered after stacking, registration, and a dynamic background extraction:

This was my first narrowband image using my ZWO ASI1600MM Pro. I used PixInsight to do some light processing of the raw data and a pixel math operation to combine the channels into the false color image. Big thank you to Nico from for his tutorial.

elephant trunk nebula in false color using SHO mapping (SII = Red, Ha = Green, OIII = Blue
imaging cameraZWO ASI 1600MM Pro
guide cameraZWO ASI 290mm Mini
mountSkywatcher EQ6-R pro
telescopeExplore Scientific ED102 APO
exposure settingsexposure: 300s
gain: 139
cooling: -15c
stacking34-57 lights in each channel
30 darks
30 flats in each channel
30 flat darks in each channel
imaging session detail

Astrobin link:

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