Post by Julien <img src="https://s3.us-east-2.amazonaws.com:443/net.flaximus.takahe/emoji/techhub.social/ve.png" class="emoji" alt="Emoji ve"> 🔭<img src="https://s3.us-east-2.amazonaws.com:443/net.flaximus.takahe/emoji/techhub.social/python.png" class="emoji" alt="Emoji python">

252d

The Elephant Trunk Nebula (IC 1396) in the constellation Cepheus in SHO palette.

This image was captured over three nights with an OSC (RGB) camera and two different dual narrow-band filters (Sulphur + Oxygen and Hydrogen + Oxygen emissions) allowing the SHO palette (Sulphur=Red, Hydrogen=Green and Oxygen=Blue). SHO images are usually captured with a monochrome camera and three separate narrow-band filters, one for each emission line.

Technical details, high resolution and annotated versions available on Telescopius: https://telescopius.com/pictures/view/193251/deep_sky/elephant-trunk/IC/1396/diffuse-nebula/elephant-trunk-nebula/by-drgfreeman

Image license: CC-BY-NC-SA 4.0.

#astrophotography #astronomy #photography #astrodon #nebula #DeepSky #space #ic1396 #kstars #ekos #phd2