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Astronomy Picture of the Day - Webb's First Deep Field
NASA ^ | 15 Jul, 2023 | Image Credit: NASA, ESA, CSA, STScI, NIRCam

Posted on 07/15/2023 1:16:44 PM PDT by MtnClimber

Explanation: This stunning infrared image was released one year ago as the James Webb Space Telescope began its exploration of the cosmos. The view of the early Universe toward the southern constellation Volans was achieved in 12.5 hours of exposure with Webb's NIRCam instrument. Of course the stars with six spikes are well within our own Milky Way. Their diffraction pattern is characteristic of Webb's 18 hexagonal mirror segments operating together as a single 6.5 meter diameter primary mirror. The thousands of galaxies flooding the field of view are members of the distant galaxy cluster SMACS0723-73, some 4.6 billion light-years away. Luminous arcs that seem to infest the deep field are even more distant galaxies though. Their images are distorted and magnified by the dark matter dominated mass of the galaxy cluster, an effect known as gravitational lensing. Analyzing light from two separate arcs below the bright spiky star, Webb's NIRISS instrument indicates the arcs are both images of the same background galaxy. And that galaxy's light took about 9.5 billion years to reach the James Webb Space Telescope.


TOPICS: Astronomy; Astronomy Picture of the Day; Science
KEYWORDS: gravitationallensing; nasa
https://apod.nasa.gov/apod

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 07/15/2023 1:16:45 PM PDT by MtnClimber
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To: MtnClimber

2 posted on 07/15/2023 1:17:09 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; Agatsu77; America_Right; ...
Pinging the APOD list.

🪐 🌟 🌌 🍔


3 posted on 07/15/2023 1:17:50 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

4 posted on 07/15/2023 1:43:10 PM PDT by Telepathic Intruder
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To: MtnClimber

All those galaxies. Wow.


5 posted on 07/15/2023 1:58:46 PM PDT by SkyDancer (My Talents Are So Hidden That Even I Can't Find Them ...)
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To: MtnClimber

Faked.


6 posted on 07/15/2023 2:01:05 PM PDT by Fuzz (. )
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To: MtnClimber

Webb’s first deep field was when he impregnated Hillary.


7 posted on 07/15/2023 2:18:02 PM PDT by LukeL
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To: MtnClimber

Wow 😮.


8 posted on 07/15/2023 2:36:10 PM PDT by No name given (Anonymous is who you’ll know me as)
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To: LukeL

Damn that’s clever! :-)


9 posted on 07/15/2023 2:55:30 PM PDT by jigsaw (God Bless Our Wonderful Troops. We love you.)
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To: MtnClimber
That's pretty cool. I think I was able to zoom in on the back of this space ship.


10 posted on 07/15/2023 3:02:43 PM PDT by Larry Lucido (Donate! Don't just post clickbait!)
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To: MtnClimber

Astronomy Picture of the Day is from a day at least one year ago. You would think that with all the space probes and telescopes that they would have some pretty cool pictures from yesterday or another day this week.


11 posted on 07/15/2023 3:27:58 PM PDT by webheart
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To: MtnClimber

It’s still an amazing picture.


12 posted on 07/15/2023 3:37:42 PM PDT by telescope115 (I NEED MY SPACE!!! 🔭)
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To: webheart
You would think that with all the space probes and telescopes that they would have some pretty cool pictures from yesterday or another day this week.

You and me too.

13 posted on 07/15/2023 4:38:38 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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