New Image: Sh2-155 The Cave Nebula in HOO

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New Image: Sh2-155 The Cave Nebula in HOO

#1

Post by AstroBee »

I'm not sure that I've ever spent this much time on a target to be this disappointed. The OIII in this subject was so fain that I could not see anything in the individual subs yet I kept on gathering data for it. A whopping 37hours of OIII alone!
I just think the time could have been better spent on a different target, that's all. I did work all day today and process this rather quickly when I got home. Maybe fresh eyes on it tomorrow will change my mind. But I'm not sure I'll be gathering any more data on this subject from my backyard. I think this is truly one that requires a dark site for the OIII data.

Explore Scientific ED152 CF APO w/TSOptics 1.0x Flattener (f8), ZWO2600mmPro, Chroma 3nm Ha & OIII filters, Astro-Physics Mach One mount

Captured with NINA, Processed with PixInsight

150x600sec Ha - 25hrs
222x600sec OIII - 37hrs

Total Integration time = 62hrs

Image
Greg M.~ "Ad Astra per Aspera"
Scopes: Celestron EdgeHD14", Explore Scientific ED152CF & ED127 APO's, StellarVue SV70T, Classic Orange-Tube C-8, Lunt 80mm Ha double-stack solar scope.
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Re: New Image: Sh2-155 The Cave Nebula in HOO

#2

Post by Juno16 »

I certainly understand your disappointment Greg!

I imaged this target a couple of years ago and wished that I hadn't spent the time to image it. I blame everything on my skies, so I just chalked it up to poor skies.
I spent 9.5 hours on it and finally on the eighth re-process, I had something that I could live with (barely).

Maybe leave it alone for now and come back to it later. You really do have some fine data there.

Your processed image is quite nice. The details are fantastic!
Jim

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Re: New Image: Sh2-155 The Cave Nebula in HOO

#3

Post by messier 111 »

Obviously I don't have the experience you have, but I think this image is very beautiful.
the colors and details are very good.
I also understand that 62 hours is a very long time, I can't wait to see the reprocess. thx Greg.
REFRACTORS , . Lunt 80mm MT Ha Doublet Refractor . William Optics ZenithStar 81 Doublet APO f/6.9 .
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Re: New Image: Sh2-155 The Cave Nebula in HOO

#4

Post by Jockinireland »

I hear you! I've never been able to get much joy out of imaging this target. I dont really know why. But that said, this is still a nice, moody image.
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Re: New Image: Sh2-155 The Cave Nebula in HOO

#5

Post by AstroBee »

After a full night's sleep and a day off I decided to give this data a second look. I made it a point NOT to look at my previous edit so my vision would not be tainted.
I came up with something I like a little better but still am not happy with. I think it's time to move on to something else...
Image Image
Greg M.~ "Ad Astra per Aspera"
Scopes: Celestron EdgeHD14", Explore Scientific ED152CF & ED127 APO's, StellarVue SV70T, Classic Orange-Tube C-8, Lunt 80mm Ha double-stack solar scope.
Mounts: Astro-Physics Mach One, iOptron CEM70EC Mount, iOptron ZEQ25 Mount.
Cameras: ZWO ASI2600mm Pro, ZWO 2600MC Pro, ZWO ASI1600mm
Filters: 36mm Chroma LRGB & 3nm Ha, OIII, SII, L-Pro, L-eXtreme
Eyepieces: 27mm TeleVue Panoptic, 4mm TeleVue Radian, Explore Scientific 82° 30mm, 6.7mm , Baader 13mm Hyperion, Explore Scientific 70° 10mm, 15mm, 20mm, Meade 8.8mm UWA
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Re: New Image: Sh2-155 The Cave Nebula in HOO

#6

Post by messier 111 »

I think this one shows the details better, thx Greg.
REFRACTORS , . Lunt 80mm MT Ha Doublet Refractor . William Optics ZenithStar 81 Doublet APO f/6.9 .
BINOS REFRACTOR , apm 82mm sd .
BINOS , Celestron 7x50 made in Japan .
Seestar S50 Smart Telescope .
EYEPIECES, 26mm Nagler t5 , 2-zoom Svbony 7-21 ,2 x Baader Hyperion Universal Zoom Mark IV 8-24mm 68° ,2 x 18mm apm flat field , Orion Premium Linear BinoViewer .
FILTERS, Nebustar 2 tele vue .Celestron uhc . Apm solar wedge . contrast booster 2 inches and 2 x 1,25 inche .
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Re: New Image: Sh2-155 The Cave Nebula in HOO

#7

Post by Ylem »

Beautiful images Greg
Clear Skies,
-Jeff :telescopewink:


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Re: New Image: Sh2-155 The Cave Nebula in HOO

#8

Post by sla&grim »

Year ago I was shooting Cave and had exactly same feelings you expressed in the header post. All your pictures are excellent in details. Looking on them it stroke me: if you have Photoshop you can merge Ver.1 into Ver.2 as layers with different opacity - you find what looks better. You have lot of data - be creative.
Slava G.
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Re: New Image: Sh2-155 The Cave Nebula in HOO

#9

Post by MariusD69 »

Amazing images! Great work, Greg!
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Re: New Image: Sh2-155 The Cave Nebula in HOO

#10

Post by jthommes »

Your second process seems a better image both in color and detail.
Jim Thommes
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