First recognize that these images were taken with a OSC camera. The NB is only Ha and Oiii. This faint target has good Sii signal and needs SHO composite to fully appreciate and compare.
Both the RGB and HOO images were taken with the ASI2600MC OSC camera. The RGB data was captured from my backyard with the Lpro light pollution filter and from Mt Pinos with a Baader IR cut filter. The Antlia Dual Band 5nm was used to capture the Ha and Oiii. APP was using to integrate and extract the Ha and Oiii masters. The RGB image processing included blending in some Ha. The detail around the core in RGB was a bit underwhelming so Ha was used as luminance.
The target: SH2-115 is a faint emission nebula close to Deneb and full of interesting solar wind-swept dust and creation pillars. Since so faint, it deserves and needs the detail gathering of a mono camera, but alas I had my mono camera on my 81gt during this time. I will revisit next year! Also, in the image is SH2-116 or Abell 71. There is debate as once thought to be PN, but is now described as an emission nebula. I'll hang my hat on
@Gary Imm's take on it, "The dim bluish central star appears to be visible. This looks like a faint planetary nebula to me, but some scientists believe that it is simply an HII region based on the fact that it contains almost no OIII emissions characteristic of a planetary nebula. But my narrowband subs show a fairly bright OIII emission in the center of the nebula, as evidenced by the yellow color in the image above." His image
here I see an open cluster in SH2-115, but it did not plate solve. Researching, I found that is designated Berkeley 90 and is the cause of much of the ionization. It has relatively young stars at only 100 million years old.
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