Orion and the Orion Molecular Cloud Complex
This prolific star-forming region lies between 1,000 and 1,400 light-years away and is hundreds of light-years across. Many of the objects in this complex consist of Hydrogen Alpha (H-Alpha) emission (the red or magenta glow). Because this emission is outside of the visible portion of the electromagnetic spectrum it can't be seen with our unaided eyes.
See https://epod.usra.edu/blog/2023/12/orion-and-the-orion-molecular-cloud-complex.html
Mark Shelley did a fantastic imaged or the Oriin area some years ago. I'll see if l can find it.
I've posted Mark's image in the Gallery but not sure if l can link it with my phone. Perhaps you can do it Rick.
(http://gallery.orpington-astronomy.org.uk/albums/userpics/10122/91FFC66E-0C63-4C4D-893A-AAC24BCAE04B.png) (http://gallery.orpington-astronomy.org.uk/albums/userpics/10122/91FFC66E-0C63-4C4D-893A-AAC24BCAE04B.png)
Best way is to link to the original thread, thus:
http://forum.orpington-astronomy.org.uk/index.php?topic=10936.msg79968#msg79968
I couldn't find it Rick but was using my phone which didn't give the option to add the person who posted.