IC 1396 - Elephant's Trunk Nebula

The Elephant's Trunk Nebula is a concentration of interstellar gas and dust located in the constellation Cepheus about 2,400 light years away from Earth.

Images taken at the end of September 2023.

 

Full resolution : astrob.in/o8h9n7/0/

 

Sii= 75x300s

Ha= 76x300s

Oii= 75x300s

 

 

Total time : 18h50'

 

-Equipment-

Scope: Askar107PHQ (740mm focal)

Camera: ZWO ASI6200MM Pro at -5°C gain 101 offset 49

Filter: Optolong SHO 3nm 50.80mm

Mount: Skywatcher AZ-EQ6

Guiding camera: ZWO ASI 120MM+ZWO OAG-L

 

All processing was done in Pixinsight exept one step

 

-Pre Processing-

Image Calibration

Cosmetic Correction

Subframe Selector

Star Alignement

Local Normalization

Image Integration

Drizzle x2

 

-Processing-

 

Star Alignment

Dynamic Crop

Dynamic Background Extractor

BlurXTerminator

NoiseXTerminator

StarXTerminator

HistogramTransformation

 

-Stars-

ChanelCombination

ImageSolver

SpectrophotometricColorCalibration

HistogramTransformation

ACDNR (green100%)

ACDNR (green50%)Ctrl+i

ColorSaturation

 

-L-

Mix max(Ha and Sii)

HDRMultiscaleTransform with mask

Mix (0.75xL+0.25xL_boost)

 

-SHO-

SHO palette

TSL/color in Lightroom

ColorSaturation

 

-L-SHO-

LRGBCombination

CuvesTransformation

ColorSaturation

More CurveTransformation

Add Stars

FinalCrop

Done