The Soul Nebula is very near my last project, the Heart Nebula, and is also an emission nebula in the Cassiopeia constellation. I captured over 56 hours of data for this image between October 17th and 23rd, 2024. I think this is another “my biggest project to date.”

I used Siril’s OSC_Extract_HaOIII script and a 60/40 Ha/OIII split on the green channel.

Click here for the full-sized image.

My Lightbucket imaging log is here.

Details:

• Explore Scientific ED127
• Hotech SCA flattener
• STF-8300C camera with an L-eXtreme filter
• Losmandy G11 mount on a custom BoldMFG pier
• 301x 600sec sub-exposures (50.17 hours used of 56.32 captured) from my Bortle ~5 backyard
• Captured in NINA
• Processed in an HOO palette with Siril, GraXpert, Photoshop, NXT & Cosmic Clarity