Fire and Ice - The Elephant Trunk in SII, H-beta, and OIII (Todd Stephens)

Celestial hemisphere: Northern · Constellation: Cepheus (Cep) · Contains: B160 · B161 · B162 · B163 · B365 · B366 · B367 · B368 · Erakis · Erakis (μ Cep) · HD204613 · HD205196 · HD205510 · HD205917 · HD205948 · HD206081 · HD206183 · HD206267 · HD206482 · HD206509 · HD206536 · HD206773 · HD206842 · HD207086 · HD208745 · HD239706 · HD239712 · HD239729 · HD239748 · IC 1396 · And 56 more.

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Fire and Ice - The Elephant Trunk in SII, H-beta, and OIII

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Fire and Ice - The Elephant Trunk in SII, H-beta, and OIII

Here's my take on IC-1396 with my 60mm doublet, CEM40, and ASI2600MC camera, shot through Antlia ALP-T dual band Ha/OIII and SII/Hb filters. The H-a really overwhelmed the other three bands, so I experimented with the different channels and liked the contrast I was getting with the SHO palette, but with H-b used for green instead of H-a. But the H-a channel was so smooth and contrasty that I wanted to incorporate it somehow into the image. I decided to use it as a luminance layer. So here it is, the HASHBO palette. Lastly I had a half hour of 60-second subs without a filter for natural star colors.

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Description: Added a slight pass of MLT to sharpen up some of the dark regions in the nebula.

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Status	Advanced success
Started	...
Astrometry.net job	8342439
PixInsight job	VWEWKQI6S7U5CLKC4YHZ8TWAS6Q7105P
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	21h38m57s.70
RA (top/left)	21h21m21s.64
RA (top/right)	21h40m23s.20
RA (bottom/right)	21h57m46s.18
RA (bottom/left)	21h37m17s.18

Dec (center)	+57°30′37″.3
Dec (top/left)	+56°10′57″.9
Dec (top/right)	+54°45′56″.2
Dec (bottom/right)	+58°40′25″.10
Dec (bottom/left)	+60°14′51″.9

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Fire and Ice - The Elephant Trunk in SII, H-beta, and OIII

Fire and Ice - The Elephant Trunk in SII, H-beta, and OIII

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Fire and Ice - The Elephant Trunk in SII, H-beta, and OIII

Fire and Ice - The Elephant Trunk in SII, H-beta, and OIII

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