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Astronomy Picture of the Day - NGC 1316: After Galaxies Collide
APOD.NASA.gov ^ | 17 May, 2022 | Image Credit & Copyright: Capture: Greg Turgeon; Processing: Kiko Fairbairn

Posted on 05/17/2022 3:02:36 PM PDT by MtnClimber

Explanation: Astronomers turn detectives when trying to figure out the cause of startling sights like NGC 1316. Investigations indicate that NGC 1316 is an enormous elliptical galaxy that started, about 100 million years ago, to devour a smaller spiral galaxy neighbor, NGC 1317, just on the upper right. Supporting evidence includes the dark dust lanes characteristic of a spiral galaxy, and faint swirls and shells of stars and gas visible in this wide and deep image. One thing that >remains unexplained is the unusually small globular star clusters, seen as faint dots on the image. Most elliptical galaxies have more and brighter globular clusters than NGC 1316. Yet the observed globulars are too old to have been created by the recent spiral collision. One hypothesis is that these globulars survive from an even earlier galaxy that was subsumed into NGC 1316. Another surprising attribute of NGC 1316, also known as Fornax A, is its giant lobes of gas that glow brightly in radio waves.


TOPICS: Astronomy; Astronomy Picture of the Day; Science
KEYWORDS: nasa
To be added or removed from the Astronomy Picture of the Day ping list please send me a request via "Private Reply" (Mail).

For more detail go to the link and click on the image for a high definition image. You can then move the magnifying glass cursor then click to zoom in and click again to zoom out. When zoomed in you can scan by moving the side bars on the bottom and right side of the image.

1 posted on 05/17/2022 3:02:36 PM PDT by MtnClimber
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To: MtnClimber

2 posted on 05/17/2022 3:02:53 PM PDT by MtnClimber (For photos of Colorado scenery and wildlife, click on my screen name for my FR home page.)
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To: 21stCenturion; 21twelve; 4everontheRight; abb; AFB-XYZ; AFPhys; America_Right; AZ .44 MAG; ...
Pinging the APOD list.

🪐 🌟 🌌 🍔


3 posted on 05/17/2022 3:03:41 PM PDT by MtnClimber (For photos of Colorado scenery and wildlife, click on my screen name for my FR home page.)
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To: MtnClimber

Waiting for the peanut galaxy to turn is into the Snickers galaxy.


4 posted on 05/17/2022 3:47:00 PM PDT by Larry Lucido (Donate! Don't just post clickbait!)
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To: MtnClimber

When galaxies collide...just think of how much global warming that causes!


5 posted on 05/17/2022 3:59:43 PM PDT by Verginius Rufus
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To: MtnClimber
That's like "When Worlds Collide" times 100 billion.

It also looks like mold.


6 posted on 05/17/2022 5:22:33 PM PDT by DannyTN
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To: MtnClimber

When there was the great explosion that gave rise to the universe, all the matter was shot in an opposite direction from the center and as they went in a straight direction, other volumes of matter were separated more and more.
So if the natural tendency of the explosion is to get further and further away, which causes the galaxies to collide.


7 posted on 05/17/2022 5:46:46 PM PDT by californian by choice
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