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Astronomy Picture of the Day - The Dancing Auroras of Saturn
APOD.NASA.gov ^
| 27 Jun, 2021
| Image Credit: NASA, Cassini, VIMS Team, U. Arizona, U. Leicester, JPL, ASI
Posted on 06/27/2021 4:10:22 PM PDT by MtnClimber
Explanation: What drives auroras on Saturn? To help find out, scientists have sorted through hundreds of infrared images of Saturn taken by the Cassini spacecraft for other purposes, trying to find enough aurora images to correlate changes and make movies. Once made, some movies clearly show that Saturnian auroras can change not only with the angle of the Sun, but also as the planet rotates. Furthermore, some auroral changes appear related to waves in Saturn's magnetosphere likely caused by Saturn's moons. Pictured here, a false-colored image taken in 2007 shows Saturn in three bands of infrared light. The rings reflect relatively blue sunlight, while the planet itself glows in comparatively low energy red. A band of southern aurora in visible in green. In has recently been found that auroras heat Saturn's upper atmosphere. Understanding Saturn's auroras is a path toward a better understanding of Earth's auroras.
(Excerpt) Read more at apod.nasa.gov ...
TOPICS: Astronomy; Astronomy Picture of the Day; Science
KEYWORDS: apod; astronomy; auroras; electricuniverse; gps; magneticfield; magnetism; magnetosphere; nasa; poleshift; saturn; science
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.
To: MtnClimber
2
posted on
06/27/2021 4:10:41 PM PDT
by
MtnClimber
(For photos of Colorado scenery and wildlife, click on my screen name for my FR home page.)
To: MtnClimber
Pinging the APOD list.
🪐 🌟 🌌
This post dedicated to Art in Idaho who was on the APOD ping list. I was informed that he passed away either during or right after heart surgery.
3
posted on
06/27/2021 4:13:44 PM PDT
by
MtnClimber
(For photos of Colorado scenery and wildlife, click on my screen name for my FR home page.)
To: 21stCenturion; 21twelve; 4everontheRight; abb; AFB-XYZ; America_Right; AZ .44 MAG; BBB333; ...
APOD Ping is dedicated to Art in Idaho who was on the APOD ping list. I was informed that he passed away either during or right after heart surgery.
4
posted on
06/27/2021 4:28:06 PM PDT
by
MtnClimber
(For photos of Colorado scenery and wildlife, click on my screen name for my FR home page.)
To: MtnClimber
5
posted on
06/27/2021 4:31:28 PM PDT
by
ETL
(REAL Russia collusion! DEMOCRAT-Russia collusion!! CHINA-Russia collusion! Click ETL...)
To: MtnClimber
Re: Freeper “Art in Idaho”
Darn. Seemed like a nice guy.
He used to ping me a lot on threads about communism and some other things. RIP, old friend.
6
posted on
06/27/2021 4:36:25 PM PDT
by
ETL
(REAL Russia collusion! DEMOCRAT-Russia collusion!! CHINA-Russia collusion! Click ETL...)
To: MtnClimber
Saturn is, indeed, a spectacularly weird place! The south pole has auroras and the north pole has this bizarre hexagon, with a rotating center:
...and that looks like one, small aurora at ~8:55 in the first frame of the animated GIF...
TXnMA
7
posted on
06/27/2021 4:43:31 PM PDT
by
TXnMA
(The Democrat Party has a single-element strategy: CHEATING... Reinstate Public Executions!)
To: MtnClimber
APOD doesn't seem to have the animated hexagon, but
APOD for 2009 December 14 has the first full-on image of it -- in B&W:
Looks somewhat ominous, to me, but the hexagonal wall shows a bizarrely intricate, twisted, rope-like structure at these wavelengths...
8
posted on
06/27/2021 5:07:01 PM PDT
by
TXnMA
(The Democrat Party has a single-element strategy: CHEATING... Reinstate Public Executions!)
To: TXnMA
Yes, that is a very strange feature.
9
posted on
06/27/2021 5:12:56 PM PDT
by
MtnClimber
(For photos of Colorado scenery and wildlife, click on my screen name for my FR home page.)
To: MtnClimber
Are the Dancing Auroras better than the Dancing Alitos?
10
posted on
06/27/2021 5:20:25 PM PDT
by
BenLurkin
(The above is not a statement of fact. It is either opinion, or satire. Or both.)
To: MtnClimber
Thanks for that info, sad news.
11
posted on
06/27/2021 6:36:55 PM PDT
by
SunkenCiv
(Imagine an imaginary menagerie manager imagining managing an imaginary menagerie.)
To: MtnClimber
Prayers up for Art and his family. Rest in peace
12
posted on
06/27/2021 6:57:26 PM PDT
by
CJ Wolf
( what is scarier than offensive soo. words? Not being able to say them...God wins. )
To: MtnClimber
Prayers for Art and family who are facing what we must all face someday.
To: MtnClimber
False color, but still stunningly beautiful!
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