APOD: Supernova Remnant: The Veil Nebula (2022 Jun 22)

[APOD Robot]

Supernova Remnant: The Veil Nebula

Explanation: Ten thousand years ago, before the dawn of recorded human history, a new light would have suddenly have appeared in the night sky and faded after a few weeks. Today we know this light was from a supernova, or exploding star, and record the expanding debris cloud as the Veil Nebula, a supernova remnant. Imaged with color filters featuring light emitted by sulfur (red), hydrogen (green), and oxygen (blue), this deep wide-angle view was processed to remove the stars and so better capture the impressive glowing filaments of the Veil. Also known as the Cygnus Loop, the Veil Nebula is roughly circular in shape and covers nearly 3 degrees on the sky toward the constellation of the Swan (Cygnus). Famous nebular sections include the Bat Nebula, the Witch's Broom Nebula, and Fleming's Triangular Wisp. The complete supernova remnant lies about 1,400 light-years away.

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[alter-ego]

Wow, never have seen the Veil quite like that before. Very mesmerizing - I immersed myself so deep into the dark, secretive face / faces behind the electrified head of hair that I never realized there were no stars until I read the description.

[madtom1999]

Can I be the first to name the RHS of the nebula as the Salmon (head down)?

[AstroLux]

Can you even call this an astrophoto anymore , this image has been manipulated so much it looks more like an oil painting than real data. Yes its starless, but the nebulosity is so badly denoised and processed, sure if you are looking from a phone screen looks ok, but put this on the big screen and it falls apart as soon as you zoom in. Im really dissapointed that this has been a recent trend for APOD, overly denoised and so much manipulated images from the real data and real life. I would assume that images that are put as APODs are at least being judged based on their looks on a monitor or in a big resolution and not from a far. I have no problem with this "astrophoto" , i see it as a problem for being an Astronomy image of the day , especially given that this processed data has been shot from a remote observatory and you would only assume observatory data doesnt have to be manipulated that much to look good. But i guess the only thing going for this image is the unique look.

[Eclectic Man]

"before the dawn of recorded human history,"

Well, the oldest know petroglyphs are around 40,000 years old, some in Australia are about 20,000 years old (https://en.wikipedia.org/wiki/Petroglyph ). Just because we do not know how to read them does not mean they are not 'recorded history'. Some oral history in Australia is reckoned to refer to events such as significant sea level rise occurring over 10,000 years ago (https://theconversation.com/ancient-abo ... evel-36010 ).

[orin stepanek]

Beautiful photo; I love it! It is though; what some see in nebulae;
some i can see; others, not so much!

[AVAO]

Maybe we shoud think about whether the visible fragments really all come from the supernova explosion, or whether this also makes PRE-EXISTING structures visible. In this case the "curls" of the great Cygnus cloud. I think, this would be an exciting research topic 4 the future.


https://live.staticflickr.com/65535/521 ... f8a8_k.jpg


https://live.staticflickr.com/65535/521 ... 2e3a_o.jpg

Jac Berne (flickr) Composit Collage from different sources in Combination with IR-Data's (IRIS & more)

[johnnydeep]

Can I be the first to name the RHS of the nebula as the Salmon (head down)?

Good call! I dare say it might even be a Sockeye!