Celestial hemisphere:  Northern  ·  Constellation: Vulpecula (Vul)  ·  Contains:  Dumbbell Nebula  ·  HD189733  ·  HD345316  ·  HD345317  ·  HD345323  ·  HD345443  ·  HD345444  ·  HD345445  ·  HD345446  ·  HD345447  ·  HD345448  ·  HD345449  ·  HD345450  ·  HD345451  ·  HD345452  ·  HD345453  ·  HD345454  ·  HD345455  ·  HD345456  ·  HD345457  ·  HD345458  ·  HD345460  ·  HD345461  ·  HD345462  ·  HD345463  ·  HD345465  ·  HD345466  ·  HD345469  ·  HD345470  ·  HD345471  ·  And 4 more.
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The Dumbell Nebula (Dumbell Nebula), Victor
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The Dumbell Nebula (Dumbell Nebula)

Getting plate-solving status, please wait...
The Dumbell Nebula (Dumbell Nebula), Victor
Powered byPixInsight

The Dumbell Nebula (Dumbell Nebula)

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Description

The Dumbbell Nebula (also known as the Apple Core Nebula, Messier 27, and NGC 6853) is a planetary nebula (nebulosity surrounding a white dwarf) in the constellation Vulpecula, at a distance of about 1360 light-years. It was the first such nebula to be discovered, by Charles Messier in 1764. (From: Wikipedia)

Imaged in my backyard in Tucson, AZ on October 2023, as a test of combining 2 filters, Antlia Dual Band (Gold) and Optolong Lpro.
In the future I will use the Antlia Triband and take longer subs of 10 or 15 minutes to allow for more contrast/detail and Nebulosity.
The triband does a nice job in capturing the various narrow band and RGB spectrums with my OSC ZWO 2600MC camera.
Taken with Takahashi FSQ-106
300sec subs x 10 Antlia dual band filter (Gold).
300sec subs x 10 L-pro filter

The sub frames were batch processed with Lights, darks, Flats and darkflats using WBPP.
I used keywords to separate the Antlia and Lpro to create master lights with each filter.
I then combined the 2 master lights utilizing ImageIntegration.
(I created 1 additional clone of each of the master Light frames as ImageIntegration requires a minimum of 3 files to allow for integration into a combined master light frame).
This resulted in a nice blending and satisfying color rendition of the Antlia dual band and Lpro filters.

The resulting single light frame was cropped, Graxpert for background extraction, color corrected, BlurX, NoiseX and StarX ala Croman. I used BlurX - Ver 2 as I have an older Imac that will not allow for Ver 4.
I then stretched the starless and star images using only the Histogram Transformation tool and added color with a combination of extracting the lightness channel and use of the LRGB combination tool to increase saturation. I then used curves to give a bit more contrast and adjust the background. Contrast was then provided by LocalHistogramEqualization using 3 passes at kernel 20, 40 and 120. Sharpening was accomplished with MultiscaleMediaTransformation and Unsharp.
The final stars and starless images were recombined with Pixel math.
Star reduction was applied to allow for enhancement of the nebula.=x1e56ztr=x193iq5w xeuugli x13faqbe x1vvkbs xlh3980 xvmahel x1n0sxbx x1lliihq x1s928wv xhkezso x1gmr53x x1cpjm7i x1fgarty x1943h6x xudqn12 x3x7a5m x6prxxf xvq8zen xo1l8bm xzsf02u=x193iq5w xeuugli x13faqbe x1vvkbs xlh3980 xvmahel x1n0sxbx x6prxxf xvq8zen xo1l8bm xzsf02uNB: After reviewing my processing with a friend with more pixinsight experience, we found that by removing the filter identifiers on my light frames prior to entering the lights in WBPP I could get the lights to integrate as one master light as opposed to getting 2 master lights based on the filter identifiers. Interestingly, I liked the final product using the initial 2 master lights and then combining manually with ImageIntegration.

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The Dumbell Nebula (Dumbell Nebula), Victor