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Astronomy Picture of the Day - Astronomy Picture of the Day
APOD.NASA.gov ^ | 17 Apr, 2021 | Image Credit: NASA, JPL-Caltech, IPAC Infrared Science Archive - Processing: Amal Biju

Posted on 04/17/2021 3:33:24 PM PDT by MtnClimber

Explanation: The Flame Nebula is a stand out in optical images of the dusty, crowded star forming regions toward Orion's belt and the easternmost belt star Alnitak, a mere 1,400 light-years away. Alnitak is the bright star at the right edge of this infrared image from the Spitzer Space Telescope. About 15 light-years across, the infrared view takes you inside the nebula's glowing gas and obscuring dust clouds though. It reveals many stars of the recently formed, embedded cluster NGC 2024 concentrated near the center. The stars of NGC 2024 range in age from 200,000 years to 1.5 million years young. In fact, data indicate that the youngest stars are concentrated near the middle of the Flame Nebula cluster. That's the opposite of the simplest models of star formation for a stellar nursery that predict star formation begins in the denser center of a molecular cloud core. The result requires a more complex model for star formation inside the Flame Nebula.


TOPICS: Astronomy; Astronomy Picture of the Day; Science
KEYWORDS: flamenebula; nasa; nebula
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 04/17/2021 3:33:24 PM PDT by MtnClimber
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To: MtnClimber

2 posted on 04/17/2021 3:33:42 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; 21stCenturion; 21twelve; 4everontheRight; abb; AFB-XYZ; America_Right; Art in Idaho; ...
Pinging the APOD list.

🪐 🌟 🌌


3 posted on 04/17/2021 3:34:18 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

The universe is a wonderment.


4 posted on 04/17/2021 3:41:06 PM PDT by A Navy Vet (USA Birth Certificate - 1787. Death Certificate - 2021 under Biteme.)
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To: MtnClimber
"The result requires a more complex model for star formation"

Nothing is as simple as it appears. In general, you have a gravitational collapse, then an expansion due to light pressure and stellar winds, and you end up with something like this:



But the details never end.
5 posted on 04/17/2021 4:03:18 PM PDT by Telepathic Intruder
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To: MtnClimber

We always called it the Oak Tree. Not sure why it was changed to Flame. It looks like an Oak Tree to me.


6 posted on 04/17/2021 6:16:57 PM PDT by Conan the Librarian (Conan the Sailing Librarian)
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