Free Republic
Browse · Search
General/Chat
Topics · Post Article

Skip to comments.

Astronomy Picture of the Day - Jupiter from the Webb Space Telescope
NASA ^ | 18 Jan, 2026 | Image Credit: NASA, ESA, CSA, Jupiter ERS Team; Processing: Ricardo Hueso (UPV/EHU) & Judy Schmidt

Posted on 01/18/2026 11:18:55 AM PST by MtnClimber

Explanation: This infrared view of Jupiter by Webb is illuminating. High-resolution infrared images of Jupiter from the James Webb Space Telescope (Webb) reveal, for example, differences between high-floating bright clouds -- including the Great Red Spot -- and low-lying dark clouds. Also clearly visible in the featured Webb image are Jupiter's dust ring, bright auroras at the poles, and Jupiter's moons Amalthea and Adrastea. The footprint of large volcanic moon Io's magnetic funneling of charged particles onto Jupiter is also visible in the southern aurora. Some objects are so bright that light noticeably diffracts around Webb's optics creating streaks. Webb, which orbits the Sun near the Earth, has a mirror over six meters across making it the largest astronomical telescope ever launched -- with over six times more light-collecting area than Hubble.


TOPICS: Astronomy; Astronomy Picture of the Day; Science
KEYWORDS: apod; nasa
Message from Jim Robinson:

Dear FRiends,

We need your continuing support to keep FR funded. Your donations are our sole source of funding. No sugar daddies, no advertisers, no paid memberships, no commercial sales, no gimmicks, no tax subsidies. No spam, no pop-ups, no ad trackers.

If you enjoy using FR and agree it's a worthwhile endeavor, please consider making a contribution today:

Click here: to donate by Credit Card

Or here: to donate by PayPal

Or by mail to: Free Republic, LLC - PO Box 9771 - Fresno, CA 93794

Thank you very much and God bless you,

Jim

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 01/18/2026 11:18:56 AM PST by MtnClimber
[ Post Reply | Private Reply | View Replies]

To: MtnClimber

2 posted on 01/18/2026 11:19:14 AM PST by MtnClimber (For photos of scenery, wildlife and climbing, click on my screen name for my FR home page.)
[ Post Reply | Private Reply | To 1 | View Replies]

To: 21stCenturion; 21twelve; 4everontheRight; A Navy Vet; A_perfect_lady; abb; AFB-XYZ; AFPhys; ...

Pinging the APOD list

🪐 🌟 🌌 🍔


3 posted on 01/18/2026 11:19:56 AM PST by MtnClimber (For photos of scenery, wildlife and climbing, click on my screen name for my FR home page.)
[ Post Reply | Private Reply | To 2 | View Replies]

To: MtnClimber

Incredible.
These moons are very small!
Edward Emerson Barnard discovered the moon Amalthea on 9 September 1892 and named it after Amalthea of Greek mythology. It was the last natural satellite to be discovered by direct visual observation; all later moons (like Adrastea) were discovered by photographic or digital imaging.


4 posted on 01/18/2026 11:26:12 AM PST by AZJeep (sane )
[ Post Reply | Private Reply | To 3 | View Replies]

To: MtnClimber

Do you know which IR bands were used to form this image?


5 posted on 01/18/2026 11:29:22 AM PST by NorthMountain (... the right of the people to keep and bear arms shall not be infringed)
[ Post Reply | Private Reply | To 3 | View Replies]

To: AZJeep

Great info! So he used the 36” Lick refractor (I just looked it up) I wonder if it’s been seen at Yerkes? I’m an hour from there. That would be cool to see, if they would ever allow it.


6 posted on 01/18/2026 11:37:20 AM PST by telescope115 (Ad Astra, Ad Deum…)
[ Post Reply | Private Reply | To 4 | View Replies]

To: NorthMountain

No, I don’t know what bands were used in this photo.


7 posted on 01/18/2026 11:44:53 AM PST by MtnClimber (For photos of scenery, wildlife and climbing, click on my screen name for my FR home page.)
[ Post Reply | Private Reply | To 5 | View Replies]

To: MtnClimber

Finally found a something

https://svs.gsfc.nasa.gov/31191 states that the image is from NIRCam

https://science.nasa.gov/mission/webb/nircam/

NIRCam is sensitive between .6 and 5 microns

All of which give clues, but nothing definitive.

< sigh >

Come on, NASA ... we’re not ALL technically illiterate!


8 posted on 01/18/2026 11:54:30 AM PST by NorthMountain (... the right of the people to keep and bear arms shall not be infringed)
[ Post Reply | Private Reply | To 7 | View Replies]

To: MtnClimber

Wow.


9 posted on 01/18/2026 1:29:30 PM PST by No name given ( Anonymous is who you’ll know me as )
[ Post Reply | Private Reply | To 2 | View Replies]

To: MtnClimber

A Great Pic


10 posted on 01/18/2026 1:35:28 PM PST by ComputerGuy
[ Post Reply | Private Reply | To 1 | View Replies]

To: MtnClimber
thank you.


11 posted on 01/18/2026 3:19:26 PM PST by Diogenesis (Si vis pacem, para bellum)
[ Post Reply | Private Reply | To 2 | View Replies]

Disclaimer: Opinions posted on Free Republic are those of the individual posters and do not necessarily represent the opinion of Free Republic or its management. All materials posted herein are protected by copyright law and the exemption for fair use of copyrighted works.

Free Republic
Browse · Search
General/Chat
Topics · Post Article

FreeRepublic, LLC, PO BOX 9771, FRESNO, CA 93794
FreeRepublic.com is powered by software copyright 2000-2008 John Robinson