"...the unbarred spiral galaxy NGC 5033, located about 40 million light-years away in the constellation of Canes Venatici (The Hunting Dogs). The galaxy is similar in size to our own galaxy, the Milky Way, at just over 100 000 light-years across...In contrast to the Milky Way NGC 5033 is missing a central bar. Instead it has a bright and energetic core called an active galactic nucleus, which is powered by a supermassive black hole. This active nucleus gives it the classification of a Seyfert galaxy. ... Due to the ongoing activity the core of NGC 5033 shines bright across the entire electromagnetic spectrum. This released energy shows that the central black hole is currently devouring stars, dust and gas getting to close to it. As this matters falls onto the supermassive black hole, it radiates in many different wavelengths."
https://www.nasa.gov/image-feature/goddard/2018/hubble-sets-sights-on-a-galaxy-with-a-bright-heart"NGC 5005, also known as Caldwell 29, is spiral galaxy in the constellation Canes Venatici. The galaxy has a relatively bright nucleus and a bright disk that contains multiple dust lanes.
https://en.wikipedia.org/wiki/NGC_5005"... is likely harbors a supermassive black hole at its heart. The galaxy has a feature called a low-ionization nuclear emission-line region (LINER) nucleus, which means the gas at the center of the galaxy is emitting light at certain wavelengths that indicates a source of energy is removing electrons from the atoms in the gas (“ionizing” it). While a few different energy sources could be responsible for causing this emission, some of the most common are supermassive black holes or star-forming regions containing very hot young stars.
https://www.nasa.gov/feature/goddard/caldwell-29------------------------------
It is a short project with data acquired in April and May 2021 both in the backyard and on a mountain site.
It was very interesting to find in the description of these two galaxies the peculiarities that they present, one with a very active nucleus where there is supposed to be a large black hole called Seyfert type and the other galaxy where the nucleus emits waves of a certain type producing a ionization at certain wavelengths. Really all very interesting.
Working with galaxies always brings me back to the 'origins' and always implies a revision of the workflow. The data collected by Maurizio had a very good session but another with an intense intervention of moonlinght but making the stack the result was quite satisfactory.
I'm sorry I didn't have more data because both galaxies and the surroundings of this region have many other small galaxies which makes it really fascinating. Both galaxies are very beautiful.
A stack was made in DSS and Siril that was later combined in equal parts due to the grain 'texture'. I worked the galaxies in starless and then in Raw Camera, different curves were applied, clarity, smart sharp, dehaze, with very low denoise AI and noise exterminator values.
Thank you for giving us a visit, we hope you like our work.
Processed July 2022
https://twitter.com/AstroOtus/status/1550860167142596609https://twitter.com/AstroOtus/status/1550863275214229506https://twitter.com/AstroOtus/status/1550867195877523457
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