Celestial hemisphere:  Northern  ·  Constellation: Draco (Dra)  ·  Contains:  NGC 5905  ·  NGC 5906  ·  NGC 5907  ·  NGC 5908  ·  PGC 2492525  ·  PGC 2492933  ·  PGC 2495986  ·  PGC 2500268  ·  PGC 2502717  ·  PGC 2504296  ·  PGC 2505469  ·  PGC 2505866  ·  PGC 2511932  ·  PGC 2514484  ·  PGC 2514954  ·  PGC 2515234  ·  PGC 2515374  ·  PGC 2515439  ·  PGC 2517205  ·  PGC 2519000  ·  PGC 2519930  ·  PGC 2520414  ·  PGC 2520876  ·  PGC 2523149  ·  PGC 2523331  ·  PGC 2523526  ·  PGC 2523530  ·  PGC 2526588  ·  PGC 2527418  ·  PGC 2528439  ·  And 24 more.
NGC 5907 -  NGC 5908 - NGC 5905  - Splinter Galaxy and Friends, Nicla.Camerin_Maurizio.Camerin
Powered byPixInsight

NGC 5907 - NGC 5908 - NGC 5905 - Splinter Galaxy and Friends

NGC 5907 -  NGC 5908 - NGC 5905  - Splinter Galaxy and Friends, Nicla.Camerin_Maurizio.Camerin
Powered byPixInsight

NGC 5907 - NGC 5908 - NGC 5905 - Splinter Galaxy and Friends

Equipment

Loading...

Acquisition details

Loading...

Description

NGC 5907 Splinter Galaxy
"Appearing as an elongated line of stars and dark dust, the galaxy is categorised as a spiral galaxy just like our own Milky Way...is about 50 million light-years from Earth, lying in the northern constellation of Draco. Although not visible..., ghostly streams of stars on large arching loops extend into space, circling around the galaxy; they are believed to be remnants of a small dwarf galaxy, torn apart by the Knife Edge Galaxy and merged with it over four billion years ago." https://esahubble.org/images/potw2025a/
"Grand tidal streams of stars seem to surround galaxy NGC 5907. The arcing structures form tenuous loops extending more than 150,000 light-years from the narrow, edge-on spiral, also known as the Splinter or Knife Edge Galaxy. Recorded only in very deep exposures, the streams likely represent the ghostly trail of a dwarf galaxy - debris left along the orbit of a smaller satellite galaxy that was gradually torn apart and merged with NGC 5907 over four billion years ago" Draco. https://science.nasa.gov/star-streams-ngc-5907

The streams commented can be view in this extraordinary work https://www.astrobin.com/full/gvgspg/D/  done by the  OmicromTeam were Jjeffbax  participate.

NGC 5905 and NGC 5908  Spiral Galaxies
"This two spiral galaxies are relatively near to each other. NGC 5905, is seen face-on; whereas NGC 5908, is seen edge-on. NGC 5908 looks remarkably similar to M104, the Sombrero Galaxy." https://noirlab.edu/public/images/noao-ngc5905/
"This galaxies lay in the constellation Draco. Their respective distances are 155 and 148 million light-years... Although they are relatively close to each other, there is no interaction between them. NGC 5905 has a strong central bar and is a type SBb galaxy. It looks a similar our galaxy, The Milky Way, which is type SBc."  http://bf-astro.com/ngc5905/ngc5905.htm

Research provides insights into molecular gas in the massive spiral galaxy NGC 5908
"The observations also revealed that NGC 5908 has a dark matter halo with the mass of approximately 10 trillion solar masses. This, together with other results, indicates that NGC 5908 is one of the most massive spiral galaxies yet known in the local universe, and suggest that it evolved largely in isolation." https://phys.org/news/2019-04-insights-molecular-gas-massive-spiral.html
------------------------------------------------------------

This is a project that we wanted to do after seeing a whole series of interesting galaxies last year that we were able to visualize while looking for information in SIMBAD.

In fact, this project, like the previous one on galaxies, was done in the same period.

First, a stack was made in DSS and a first complete workflow to observe the level of detail that the data yielded. It was really amazing to see the Splinter Galaxy and much of its detail.

Just like the 'Sombrero' and the other Spiral Galaxy.

Then a Siril stack was also made and curiously the NGC 5905 showed much more details than the DSS one, applying the same workflow to the stack result.

So a blending was done to obtain the final result. To obtain the starless image, the two programs were used. In Camara Raw, Clarity, Dehaze, Texture, Hue, Saturation were applied, and in the end both Denoise AI and Noise eXterminator.

The stars are worked on separately as part of the wrokflow by subtracting them from the previously cleaned image where asinhcurve has been applied and the gradients removed and the background adjusted.

In this project we were quite satisfied with the results obtained.

Thank you for visiting us and we hope you like our work

Processed July 2022

https://twitter.com/AstroOtus/status/1553705214292762624
https://twitter.com/AstroOtus/status/1553705221968248837
https://twitter.com/AstroOtus/status/1553705231439040513

Comments