Pacman Nebula (NGC 281)

 Posted: Oct 5th, 2024
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NGC
IC
HD
Technical Info
Telescope/Lens: Sky-Watcher 130/650 PDS
Camera: ZWO ASI294MM Pro
Mount: Vixen Sphinx SXW OnStep
Guide Scope: SVBONY FMC 50mm
Guide Camera: ZWO ASI290mini
Software: ZWO ASIAir OS, Pixinsight
Accessories: Baader Planetarium MPCC Mark III
Exposure:
20 x 300" ISO/Gain: 120 - Antlia 3nm Narrowband H-Alpha (Ha)
20 x 300" ISO/Gain: 120 - Antlia 3nm Narrowband Oxygen III (OIII)
30 x 30" ISO/Gain: 120 - Optolong Red CCD
30 x 30" ISO/Gain: 120 - Optolong Green CCD
30 x 30" ISO/Gain: 120 - Optolong Blue CCD
Red zoneLight Pollution:
 Vyksa, Russia
 Sep 16th, 2024
4 h 5 m
930
Resolution: 5932x3954 px
Scale: 3541 KB
Current photo Updated
  5 Oct, 2024
  4 h 5 m
  21 Sep, 2024
  4 h 5 m
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Comments

Great shot! How did you achieve a Hubble-like palette using only Ha and OIII (judging by the technical details)? What blending formula did you use? Or did you simply forget to mention sulfur in the details?
10 Oct, 2024 Reply
Strannick Replied to Vladimir
Thank you! This is the Foraxx palette. Yes, I use only 2 narrowband filters and combine them using a script by Paul Hancock (PaulymanAstro). You can read about how this script works here: https://remoteastrophotography.com/2023/01/foraxx-palette-script-dynamic-narrowband-combinations. I've also tried it with three filters—I didn't find much difference. If you add SII, the yellow color shifts closer to orange. In my opinion, using just 2 filters actually produces a more interesting result.
10 Oct, 2024 Reply
Vladimir Replied to Strannick
Thank you very much for the link! I'm just starting to learn narrowband imaging.
10 Oct, 2024 Reply

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