Oiii emission near the Flaming Star Nebula Other · Daniele Borsari · ... · 4 · 250 · 5

daniele.borsari 3.61
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Hi,

Yesterday I finished processing my latest image of the Flaming Star and Tadpoles nebulae.



I used the Optolong L-eNhance filter and for RGB stars just a UV/IR Cut. I then made a HOO palette (H=R, O=(G+B)/2) and processed my image with my usual workflow with NarrowbandNormalization set on Mode 2.
On the final image I was able to see a little teal-ish smudge (I think an Oiii emission) on the top-right.

IC405_arrow.jpg
IC405_arrow_starless.jpg
Have you already seen it in other images or is this just an artifact?
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andreatax 7.90
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It looks bona fide but you should check with Vizier/Aladin at the object's location to see what's there. At first glance it seems to match GN 5.11.2 but you should really check it online.
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WhooptieDo 9.24
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That's a reflection nebula.   Since your filter has a wider band pass, you're picking it up.  Don't remember the name, but it's in the current data set I'm working on
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daniele.borsari 3.61
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@Brian Puhl That seems legit. Thank you.
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WhooptieDo 9.24
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Here's a glance at it from my LRGB data.    It's pretty prominent, but my framing was a bit too tight to really get all of the reflection.     Some nice brown dust in there however.


FlamingScreenshot.jpg


641a49de9410a794a0cc0e5d47f8184b.jpg
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