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NGC 6888 Cresent Nebula in SHO hubble, or HOO?

Started by rharris on 6/1/2024 7:04:02 AM CST

rharris

Joined 2/23/2015
Loc: Mo, USA
Posted 6/1/2024 7:04:02 AM CST

I spent 15 hours on NGC 6888 the Cresent nebula using my Takahashi FSQ-106-EDX4 and a ZWO 2600MM. 

My acquisition details are below:

Sulfur II: 18 frames at 300s each = 1.5 hours
Hydrogen Alpha: 88 frames at 300s each  = 7.3 hours
Oxygen III: 50 frames at 300s each = 4.15 hours
Red: 10 frames at 180s each = .5 hours
Blue:  10 frames at 180s each = .5 hours
Green:  10 frames at 180s each = .5 hours
Total acquisition time = 15 hours

Final image and all here: https://ozarkhillsobservatory.com/ngc-6888-crescent-nebula-captured-with-takahashi-fsq-106edex4/

When I was processing I realized some pallets have more clarity than others and I see several different choices by astrophotographers on this subject, but I'm torn.

Ultimately I chose HOO (Ha=red,OIII=blue, OIII=green) and then used RGB for my stars.

But see below, the same closeup starless image of the nebula itself, one in HOO and one in Hubble pallet (Ha=green,OIII=blue, SII=red).

Thoughts?
 

 


Ozark Hills Observatory

https://ozarkhillsobservatory.com


I love gear, don't judge me. Telescope.gif


(SCOPES) 14" f/8 ACF Optics - 2845mm focal length, TEC 180FL f/7 1260 mm focal length with Astro-Physics QUAD TCC Reducer (f/5), Takahashi TOA-130-NFB, 12" f/10 ACF - 3048mm (f/10) focal length, 12.5 AG Optical Truss,Takahashi FSQ-106EDX4,. Orion 180mm Maksutov-Cassegrain (7.1") 2700mm focal length (f/15), RedCat 51 II APO 250mm f/4.9, Meade 70 mm Series 6000 Astrograph Quadruplet APO Refractor, RedCat 71, Sharpstar 150mm f/2.8 HNT Hyperbolic Newtonian Astrograph, (MOUNTS) RST-300, Paramount MX Series 6, Losmandy G11 / Gemini II, ZWO AM5, LXD75, (CAMERAS) ZWO ASI6200MM Pro, ASI2600MM Pro, QHY 268C EB, QHY5-III Guider / Planetary, ASI120MM Guide, Canon 6D Full Frame, ZWO filters, Chroma 3nm SHO/RGB


 


rharris

Joined 2/23/2015
Loc: Mo, USA
Posted 6/1/2024 10:23:59 AM CST

I thought I would also add the "final" image here for comparison. (lower quality)

 


Ozark Hills Observatory

https://ozarkhillsobservatory.com


I love gear, don't judge me. Telescope.gif


(SCOPES) 14" f/8 ACF Optics - 2845mm focal length, TEC 180FL f/7 1260 mm focal length with Astro-Physics QUAD TCC Reducer (f/5), Takahashi TOA-130-NFB, 12" f/10 ACF - 3048mm (f/10) focal length, 12.5 AG Optical Truss,Takahashi FSQ-106EDX4,. Orion 180mm Maksutov-Cassegrain (7.1") 2700mm focal length (f/15), RedCat 51 II APO 250mm f/4.9, Meade 70 mm Series 6000 Astrograph Quadruplet APO Refractor, RedCat 71, Sharpstar 150mm f/2.8 HNT Hyperbolic Newtonian Astrograph, (MOUNTS) RST-300, Paramount MX Series 6, Losmandy G11 / Gemini II, ZWO AM5, LXD75, (CAMERAS) ZWO ASI6200MM Pro, ASI2600MM Pro, QHY 268C EB, QHY5-III Guider / Planetary, ASI120MM Guide, Canon 6D Full Frame, ZWO filters, Chroma 3nm SHO/RGB


 



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