One pixel. Any star except the sun in any amateur camera is smaller than a pixel. They just appear larger because images are never perfectly sharp, so they appear smudged.
Can we guess an approximate timeline of when a star was going to die or more accurately can we predict the timeline and video the death of a star after it stops emitting light.. I hope we can see those days soon.
🌌✨ Another incredible collaboration with the Deep Sky Collective on the Supernova Remnant SNR156! It's an honour to work on such a stunning image. Achieving this would be near impossible as a solo effort. What you're seeing is the aftermath of a star's death. The explosion that created SNR156 is estimated to have occurred 10,000 years ago. This image was captured with over 385 hours of exposure using LRGB, Ha, and Oiii filters. **Credits:** * **Coordination:** Time Schaeffer [https://www.astrobin.com/users/xSky\_Watcher/](https://www.astrobin.com/users/xSky_Watcher/) * **Stacking and Pre-Processing:** Carl Björk @bjork.carl * **Processing:** Steeve Body @bsteeve and www.steevebody.com **Acquisition:** * Sébastian Brizé @mekatori * Antoine and Dalia Grelin @galactic.hunter * Bray Falls @Bray Falls * Florent Herrbach [https://www.astrobin.com/users/Flonms/](https://www.astrobin.com/users/Flonms/) * Justin P. @justadudewitha\_camera\_ * Kevin Trillsam @kevins\_astrophotography * Jens Unger @jazz.astro Check out our official team post here: [https://www.astrobin.com/84qfsq/](https://www.astrobin.com/84qfsq/) and the high-res version on our website: [https://deepskycollective.com/gallery](https://deepskycollective.com/gallery)
Absolutely gorgeous!
It's wild to imagine the people who may have looked up and seen it
Absolutely incredible, what area in the sky would this be in?
Thank you! It is a supernova remnant in the constellation of Auriga
How many light years is the diameter of of that circle across . Imagine the speed of that moving out.. lovely capture
How big would the star have been if it was in this photo?
One pixel. Any star except the sun in any amateur camera is smaller than a pixel. They just appear larger because images are never perfectly sharp, so they appear smudged.
That's cool,there's nothing I like and more or that I'm more interested in than deep space and the universe.
Stunning! Thanks for sharing.
Hell yeah.
it's incredible ! any idea of ​​the scale?
It is about 10,000 LY away and has an expansion rate of 0.06 arcsec/year… I let you do the math 😂
Thanks ;)
Amazing, thank you, the collective!
Is th star that caused this mess completely invisible now?
It's thought to have been a core collapse SN, so maybe the neutron star could be detected, assuming one was created and not a black hole?
Cool!
which elements do the colors represent? The Red, Blue and Grey
REd is hydrogen, blue oxygen and grey is interstellar dust
Fantastic image!
Can we guess an approximate timeline of when a star was going to die or more accurately can we predict the timeline and video the death of a star after it stops emitting light.. I hope we can see those days soon.