Elephant's Trunk Nebula Captured With Large Telescope

The Elephant's Trunk Nebula is a concentration of interstellar gas and dust within the much larger ionized gas region IC 1396 located in the constellation Cepheus. This nebula is approximately 2,400 light years away from Earth.

I'm still using my main Celestron CGX and large refractor telescope setup. I pointed at the Elephant's Trunk nebula and captured over 22 hours of narrowband data on it. This nebula is processed in the Hubble Palette. Here is more info:

Target:
Elephant's Trunk Nebula (IC 1396)

Imaging Telescope:
Explore Scientific 127mm ED Refractor (952 focal length)

Focuser:
MoonLite 2.5" Focuser with Motor Auto-Focus

Field Flattener:
HoTech 2" SCA Field Flattener

Mount:
Celestron CGX

Polar Alignment:
QHYCCD PoleMaster

Imaging Camera:
ZWO ASI1600MM-Cool

Frames:

Astronomik Ha: 100x240" (gain: 139, offset: 21)
Astronomik OIII: 130x240" (gain: 75, offset: 15)
Astronomik SII: 111x240" (gain: 139, offset: 21)

Integration: 22.73 hours

Guide scope:
Orion ST80

Guide Camera:
Lodestar X2

Guide Software:
PHD2

Calibration Frames:
Darks: 50, Bias: 50, Flats: 50

Capture software:
Sequence Generator Pro (SGP)

Stacking software:
PixInsight

Post Processing:
PixInsight, PhotoShop

Dew Shield, Dew Heater Strip

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