07/20/2026
A few days ago I shared my first processing of the Elephant’s Trunk Nebula (IC 1396A) done with my 1000mm telescope. As is often the case in astrophotography, I kept looking at the data and wondered what another approach might reveal.
For this second version, I completely reprocessed the image using an HSO (Hydrogen, Sulfur, Oxygen) narrowband palette. Starting from the original data, I remapped the narrowband signals, refined the contrast, enhanced the intricate dust structures, darkened the background, carefully balanced the stars, and settled on a warm golden interpretation that gives the glowing gas and dark dust lanes a very different character.
One of the things I love about astrophotography is that the data never changes, but the artistic interpretation can.
Which version do you prefer—the original processing or this new HSO interpretation?