APOD: Sharpless 249 and the Jellyfish Nebula (2019 Mar 07)

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APOD: Sharpless 249 and the Jellyfish Nebula (2019 Mar 07)

Post by APOD Robot » Thu Mar 07, 2019 5:07 am

Image Sharpless 249 and the Jellyfish Nebula

Explanation: Normally faint and elusive, the Jellyfish Nebula is caught in this alluring telescopic field of view. The entire scene is a two panel mosaic constructed using narrowband image data, with emission from sulfur, hydrogen and oxygen atoms shown in red, green and blue hues. It's anchored right and left by two bright stars, Mu and Eta Geminorum, at the foot of the celestial twin. The Jellyfish Nebula itself is right of center, the brighter arcing ridge of emission with dangling tentacles. In fact, the cosmic jellyfish is part of bubble-shaped supernova remnant IC 443, the expanding debris cloud from a massive star that exploded. Light from the explosion first reached planet Earth over 30,000 years ago. Like its cousin in astrophysical waters the Crab Nebula supernova remnant, the Jellyfish Nebula is known to harbor a neutron star, the remnant of the collapsed stellar core. An emission nebula cataloged as Sharpless 249 fills the field at the upper left. The Jellyfish Nebula is about 5,000 light-years away. At that distance, this image would be about 300 light-years across.

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Re: APOD: Sharpless 249 and the Jellyfish Nebula (2019 Mar 07)

Post by Boomer12k » Thu Mar 07, 2019 5:26 am

Looks like a BRAIN...with a "Thought Box"...like in a comic....I wonder what it is thinking....

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Re: APOD: Sharpless 249 and the Jellyfish Nebula (2019 Mar 07)

Post by Boomer12k » Thu Mar 07, 2019 5:27 am

This is your Brain... This is your brain on SPACE....

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Re: APOD: Sharpless 249 and the Jellyfish Nebula (2019 Mar 07)

Post by Boomer12k » Thu Mar 07, 2019 5:29 am

It's not that episode of Star Trek NG...with the space-fairing jelly fish is it?....That was the pilot episode...


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Re: APOD: Sharpless 249 and the Jellyfish Nebula (2019 Mar 07)

Post by orin stepanek » Thu Mar 07, 2019 12:07 pm

It's a nice picture of the Jellyfish Nebula! 8-)
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Re: APOD: Sharpless 249 and the Jellyfish Nebula (2019 Mar 07)

Post by Ann » Thu Mar 07, 2019 12:33 pm

Boomer12k wrote:
Thu Mar 07, 2019 5:29 am
It's not that episode of Star Trek NG...with the space-fairing jelly fish is it?....That was the pilot episode...


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Wasn't there an episode called "Spock's Brain", where everybody's favourite half-Vulcan Science Officer had mislaid his grey matter?

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Re: APOD: Sharpless 249 and the Jellyfish Nebula (2019 Mar 07)

Post by Fred the Cat » Thu Mar 07, 2019 2:16 pm

Ann wrote:
Thu Mar 07, 2019 12:33 pm
Boomer12k wrote:
Thu Mar 07, 2019 5:29 am
It's not that episode of Star Trek NG...with the space-fairing jelly fish is it?....That was the pilot episode...


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Wasn't there an episode called "Spock's Brain", where everybody's favourite half-Vulcan Science Officer had mislaid his grey matter?

Ann
I’d like to get inside the brains of the sci-fi writers to see what motivated that plot line. For instance – had one heard of the concept of a Boltzmann brain then ran with it? It was probably just a random fluctuation. :wink:
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Re: APOD: Sharpless 249 and the Jellyfish Nebula (2019 Mar 07)

Post by MarkBour » Fri Mar 08, 2019 1:59 am

Boomer12k wrote:
Thu Mar 07, 2019 5:26 am
Looks like a BRAIN...with a "Thought Box"...like in a comic....I wonder what it is thinking....

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It looks to me like it is in the process of formulating a thought about its lost cat. I even think I can make out that the cat must be a Russian Blue.
Capture.jpg
I wonder what that strange-looking blue cluster is at the upper left of the "thought bubble", near the top center of the image.
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Re: APOD: Sharpless 249 and the Jellyfish Nebula (2019 Mar 07)

Post by neufer » Fri Mar 08, 2019 3:31 am

Boomer12k wrote:
Thu Mar 07, 2019 5:27 am

This is your Brain... This is your brain on SPACE....
https://en.wikipedia.org/wiki/Gritty_(mascot) wrote:
<<Gritty is the official mascot for the Philadelphia Flyers National Hockey League (NHL) team. He is a 7-foot furry orange creature with googly eyes who wears Flyers' gear. Gritty has been compared to the Phillie Phanatic, the mascot for the Philadelphia Phillies baseball team. According to his official biography, Gritty emerged after construction at the Wells Fargo Center, the Flyers' home arena, disturbed his secret hideout.>>
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Ann
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Re: APOD: Sharpless 249 and the Jellyfish Nebula (2019 Mar 07)

Post by Ann » Fri Mar 08, 2019 4:16 am

MarkBour wrote:
Fri Mar 08, 2019 1:59 am
Boomer12k wrote:
Thu Mar 07, 2019 5:26 am
Looks like a BRAIN...with a "Thought Box"...like in a comic....I wonder what it is thinking....

:---[===] *
It looks to me like it is in the process of formulating a thought about its lost cat. I even think I can make out that the cat must be a Russian Blue.
Capture.jpg
I wonder what that strange-looking blue cluster is at the upper left of the "thought bubble", near the top center of the image.
Since the image is a narrowband one, and blue means OIII, I would guess that the small blue patch is a distant planetary nebula.

Ann
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Re: APOD: Sharpless 249 and the Jellyfish Nebula (2019 Mar 07)

Post by MarkBour » Fri Mar 08, 2019 5:24 pm

Capture.jpg
neufer wrote:
Fri Mar 08, 2019 3:31 am
... Gritty ... is a 7-foot furry orange creature with googly eyes ...
Yep, apt description.
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Re: APOD: Sharpless 249 and the Jellyfish Nebula (2019 Mar 07)

Post by MarkBour » Sat Mar 09, 2019 6:58 am

Ann wrote:
Fri Mar 08, 2019 4:16 am
Since the image is a narrowband one, and blue means OIII, I would guess that the small blue patch is a distant planetary nebula.

Ann
Thanks!
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Re: APOD: Sharpless 249 and the Jellyfish Nebula (2019 Mar 07)

Post by sander99 » Thu Mar 14, 2019 7:05 pm

I'm sorry, but when my wife got up this morning she looked at my screensaver with this, and her comment was "That looks like a big poopie!'