Celestial hemisphere:  Northern  ·  Constellation: Hercules (Her)
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Abell 39 planetary nebula with Integrated Flux Nebula, Marcel Noordman
Abell 39 planetary nebula with Integrated Flux Nebula
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Abell 39 planetary nebula with Integrated Flux Nebula

Getting plate-solving status, please wait...
Abell 39 planetary nebula with Integrated Flux Nebula, Marcel Noordman
Abell 39 planetary nebula with Integrated Flux Nebula
Powered byPixInsight

Abell 39 planetary nebula with Integrated Flux Nebula

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Description

Description (Wikipedia)
Abell 39 is a low surface brightness planetary nebula in the constellation of Hercules. It is the 39th entry in George Abell's 1966 Abell Catalog of Planetary Nebulae of 86 old planetary nebulae which either Abell or Albert George Wilson discovered before August 1955 as part of the National Geographic Society - Palomar Observatory Sky Survey. It is estimated to be about 3,300 light-years from earth and 4,600 light-years above the Galactic plane. It is almost perfectly spherical and also one of the largest known spheres with a radius of about 1.3 light-years.

Personal note
This is one of my first pictures with rally deep Lum data. I moved from 300s to 600s exposures and processed to get the background integrated flux nebulae (IFN) out. I also collected a bunch of O3 and H2 data, but these did not add much to the LRGB set, so I left them out.

Workflow
Pixinsight: WBPP, NormalizeScaleGradient, DBE, Syntethic Luminance with Lum+RGB, DynamicCrop, MLT denoise, HistogramTransformation, Starnet2, TGVDenoise, Game mask, LocalHistogramEqalization, MMT sharpening, Curves to boost the colors.

Please let me know your feedback and your suggestions on how to improve further. Thank you!

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Abell 39 planetary nebula with Integrated Flux Nebula, Marcel Noordman