Elephant Trunk Nebula

The Elephant Trunk nebula is a concentration of interstellar gas and dust within the much larger ionized gas region IC1396.

 

SHO-combined

R : SII

G : Ha

B : OIII

 

Shooting Location :

* 51° N 3° E

* bortle class 5 backyard

 

Object Information

* Type : Emission Nebula

* Magnitude : 3.5

* Location (J2000.0): RA 21h 34m 58s / DEC +57° 30' 09"

* Approximate distance : 735 parsecs / 2.400 lightyears

 

Hardware

* Mount : Celestron CGX

* Imaging Scope : Sky-Watcher Explorer 150PDS

* Imaging Camera : ZWO ASI 183MM

* Filter Wheel : ZWO EFW 7*36mm + Baader Ha 7nm, Baader OIII 8.5nm + Baader SII 8.5nm + Baader LRGB

* Coma Corrector : Baader MPCC III

* Guide Scope : Sky-Watcher StarTravel 80

* Guide Camera : ZWO ASI 120MM

 

Exposures

* Single Exposure Length : 180sec

* Sensor Temperature : -20°C

* Gain : 111

* Offset : 10

* Light Frames :

> Baader Ha : 83

> Baader OIII : 56

> Baaser SII : 48

* Bias Frames : 100

* Dark Frames : 50

* Flat Frames : 100/channel

* Flat Dark Frames : 50/channel

* Total Integration Time : 9h21m

* Capture Dates : 2018-08-31 & 2018-09-01

 

Capture Software

* Sequence Generator Pro

* PHD2 Guiding

 

Processing Software

* PixInsight

* Adobe Photoshop

Done