Elephant Trunk Region (IC 1396), Cepheus

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IC 1396 is a large, roughly circular area of nebulosity in the constellation Cepheus. The entire region is often referred to as the "Elephant Trunk Nebula," based on the long, finger-like structure at mid-height, left side of image (IC 1396A). IC1396 is an emission nebula, meaning that it emits a faint glow caused by ionized gases. In addition to the glowing ionized gas, there are also dark dust clouds (dark regions of image) that extinguish starlight coming from behind the nebula. Embedded in the center of this nebula is an open star cluster designated 'Trumpler 37'.

A New 3-color Narrowband Version of the Elephant Trunk Nebula

This colorized version of the nebula was shot through three different narrowband filters: H-alpha, SII and OIII. (The color interpretation is aesthetic and not true to what would be visible to the human eye.)

  Optics:Takahashi FSQ-106EDX4 
Camera:ZWO ASI 6200MM cooled CMOS camera 
Exposure info:22/23/24 x 10 mins (Ha/OIII/SII), 11.5 hours total exposure 
Filters used:Astrodon H-alpha, OIII and SII narrowband filters 
date:November 2023 
  Processing:Pixinsight-->Photoshop-->Topaz deNoise AI-->Lightroom 
  Color palette:Red = H-alpha, Green = SII, Blue = OIII, with color adjustments  

An Older Effort at the Elephant Trunk

This black & white image was shot in pure H-alpha through a narrowband filter in the constellation Cepheus. The central star cluster is surrounded by a large field of ionized hydrogen

  Optics:Williams Optics Star 71 
Camera:ZWO ASI 1600MM cooled CMOS camera 
Exposure info:16 x 10 mins 
Filters used:Astrodon H-alpha (5 nm) 
date:October 2018