Spitzer: The Fading Ghost of a Long-Dead Star

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bystander
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Spitzer: The Fading Ghost of a Long-Dead Star

Post by bystander » Thu Aug 02, 2018 7:16 pm

The Fading Ghost of a Long-Dead Star
NASA | JPL-Caltech | Spitzer | 2018 Aug 02
Thin, red veins of energized gas mark the location of one of the larger supernova remnants in the Milky Way galaxy in this image from NASA's Spitzer Space Telescope.

A supernova "remnant" refers to the collective, leftover signs of an exploded star, or supernova. The red filaments in this image belong to a supernova remnant known as HBH 3 that was first observed in 1966 using radio telescopes. Traces of the remnant also radiate optical light. The branches of glowing material are most likely molecular gas that was pummeled by a shockwave generated by the supernova. The energy from the explosion energized the molecules and caused them to radiate infrared light.

The white, cloud-like formation also visible in the image is part of a complex of star-forming regions, simply named W3, W4 and W5. However, those regions extend far beyond the edge of this image. Both the white star-forming regions and the red filaments are approximately 6,400 light years away and lie inside our Milky Way galaxy.

HBH 3 is about 150 light-years in diameter, ranking it amongst the largest known supernova remnants. It is also possibly one of the oldest: Astronomers estimate the original explosion may have happened anywhere from 80,000 to one million years ago. ...
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starsurfer
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Re: Spitzer: The Fading Ghost of a Long-Dead Star

Post by starsurfer » Fri Aug 03, 2018 5:11 am

This looks really nice in optical as well.

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Ann
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Re: Spitzer: The Fading Ghost of a Long-Dead Star

Post by Ann » Fri Aug 03, 2018 7:26 am

starsurfer wrote:
Fri Aug 03, 2018 5:11 am
This looks really nice in optical as well.
Nice image, starsurfer!

Do you know, by any chance, where this supernova remnant is located? Coordinates, or perhaps a Sharpless designation?

Ann
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starsurfer
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Re: Spitzer: The Fading Ghost of a Long-Dead Star

Post by starsurfer » Fri Aug 03, 2018 3:09 pm

Ann wrote:
Fri Aug 03, 2018 7:26 am
starsurfer wrote:
Fri Aug 03, 2018 5:11 am
This looks really nice in optical as well.
Nice image, starsurfer!

Do you know, by any chance, where this supernova remnant is located? Coordinates, or perhaps a Sharpless designation?

Ann
This is to the right of the Heart Nebula, try finding it in this Ha mosaic of the whole of Cassiopeia!

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neufer
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Re: Spitzer: The Fading Ghost of a Long-Dead Star

Post by neufer » Fri Aug 03, 2018 3:19 pm

starsurfer wrote:
Fri Aug 03, 2018 3:09 pm
Ann wrote:
Fri Aug 03, 2018 7:26 am
starsurfer wrote:
Fri Aug 03, 2018 5:11 am

This looks really nice in optical as well.
Do you know, by any chance, where this supernova remnant is located? Coordinates, or perhaps a Sharpless designation?
This is to the right of the Heart Nebula,
  • Well...that would explain the "red veins."
Art Neuendorffer