"M 57, or the Ring Nebula, is a planetary nebula, the glowing remains of a sun-like star. The tiny white dot in the center of the nebula is the star’s hot core, called a white dwarf. M57 is about 2,000 light-years away from Earth in the constellation Lyra and the main structure measures roughly one light-year across.... Discovered by the French astronomer Antoine Darquier de Pellepoix in 1779, the Ring Nebula has an apparent magnitude of 8.8 "
https://www.nasa.gov/feature/goddard/2017/messier-57-the-ring-nebulaThe M 57 The Ring Nebula was a bit of a mystery to us, as did the NGC 40 Bow-Tie Nebula, due to how small is in our current FOV.
With the data collected there is little that can be appreciated of this extraordinary and beautiful Planetary Nebula, although at least the central star and some spots around it are observed clearer, its red rings that surround it, but like any challenge, you have to try a first approach and it was done.
The work consisted of making the stacks of the L-Pro and Enhance filters separate, in the two stacking programs, working them separately and then putting them together. The Enhance result gave an additional touch of color around the ring but it is still very faint and does not add any noticeable detail.
If we have the opportunity to get more data from this planetary with a new scope, we will surely return to it and try to get the best of it.
After several PN imaged and worked what we are learned:
-Good guiding and accurate focus is critical in this PN (as it always should be).
-Acquiring the data under the best Seeing condition would be the best.
-A modified camera or dedicated astro camera can make a difference. Due to the composition of the gases emitted by this type of nebula, the same amount of hours invested doing in a normal camera, would produce other results that are much richer in detail.
-Dual, tri band and narrowband filters are necessary in the purpose of bring those details out.
-Telescope with greater focal length. As you can see in the fullframe on a Newton 200-800 mm, these targets appear very small, which is recommended at least a minimum of 1200mm but more as 2000mm, as well as looking for the ideal resolution ratio of the sensor with a higher OTA, is a necessary exercise at the time wanting to upgrade the gear.
Processed on July 2nd, 2021
https://twitter.com/AstroOtus/status/1410961471748644872----------------------------------------------------------------------------------------------------------------------------
Note: With M 57, is closing the work done until now in our path in astrophotography. The following worked images in this year are the first published in Astrobin.
* IC 1848 - Soul Nebula Processed - Processed May-June 2021
* IC 1848 - Running in the Cosmic Field - Processed May-June 2021
* IC 1805 - Heart Nebula - Processed July-Sept. 2021
* Melotte 15 - (H-HO-O) - Processed August-Sept 2021
* NGC 281 - Pacman Nebula - Processed Oct-Nov 2nd 2021
* NGC 6514 - Trifid Nebula - Processed Nov 21th, 2021
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