Both Uranus and Neptune Have Really Bizarre Magnetic Fields
- Graeme1858
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Both Uranus and Neptune Have Really Bizarre Magnetic Fields
The magnetic fields of Uranus and Neptune are really, seriously messed up. And we don’t know why.
https://www.universetoday.com/151135/bo ... ic-fields/
Regards
Graeme
https://www.universetoday.com/151135/bo ... ic-fields/
Regards
Graeme
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Re: Both Uranus and Neptune Have Really Bizarre Magnetic Fields
That's wild!Graeme1858 wrote: ↑Sat May 15, 2021 8:05 am The magnetic fields of Uranus and Neptune are really, seriously messed up. And we don’t know why.
https://www.universetoday.com/151135/bo ... ic-fields/
Regards
Graeme
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Re: Both Uranus and Neptune Have Really Bizarre Magnetic Fields
Hello Graeme. A very interesting article and link. I always like to bring something to the table, so here are two pages from a December 2019 Sky&Telescope magazine cover feature about Uranus and Neptune. The feature article contained information about the rings, numerous moons, and our next exploration launch to these giants. However I just scanned two pages which are related to your above link. This information is slightly older than the latest research by Tomoaki Kimura and Motohiko Murakam, but there is still much interesting reading here.
Thanks for finding and linking this solar system news Graeme, and the best of regards.Marshall
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Re: Both Uranus and Neptune Have Really Bizarre Magnetic Fields
Very odd, I also was not aware that Uranus spins perpendicular to the rest of the solar system.
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- Juno16
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Re: Both Uranus and Neptune Have Really Bizarre Magnetic Fields
Pretty cool stuff Graeme!
What an amazing universe we live in!
What an amazing universe we live in!
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Re: Both Uranus and Neptune Have Really Bizarre Magnetic Fields
Maybe Uranus and Neptune are pretending they are pulsars!
To state the obvious, there is something in their mechanics or electrical circulation that slants their inner currents in a way that causes their magnetic fields to operate at an off angle from their externally visible rotation. I think it will be interesting reading when some smart, energetic person figures out what is going on.
From external appearances, pulsars seem to do the same thing. I doubt the underlying process with each type of object is the same, but I wonder if there could be some sort of parallel commonality. Maybe some sort of gyroscopic torque internally that slants the magnetic field, due to the nature of the internal materials that are different than both gas giants and terrestrial planets?
To state the obvious, there is something in their mechanics or electrical circulation that slants their inner currents in a way that causes their magnetic fields to operate at an off angle from their externally visible rotation. I think it will be interesting reading when some smart, energetic person figures out what is going on.
From external appearances, pulsars seem to do the same thing. I doubt the underlying process with each type of object is the same, but I wonder if there could be some sort of parallel commonality. Maybe some sort of gyroscopic torque internally that slants the magnetic field, due to the nature of the internal materials that are different than both gas giants and terrestrial planets?
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Re: Both Uranus and Neptune Have Really Bizarre Magnetic Fields
That's a good point. Actually the Earth has an offset dipole moment too. It's just a smaller offset than for Uranus and Neptune.MistrBadgr wrote: ↑Tue May 18, 2021 2:37 am Maybe Uranus and Neptune are pretending they are pulsars!
To state the obvious, there is something in their mechanics or electrical circulation that slants their inner currents in a way that causes their magnetic fields to operate at an off angle from their externally visible rotation. I think it will be interesting reading when some smart, energetic person figures out what is going on.
From external appearances, pulsars seem to do the same thing. I doubt the underlying process with each type of object is the same, but I wonder if there could be some sort of parallel commonality. Maybe some sort of gyroscopic torque internally that slants the magnetic field, due to the nature of the internal materials that are different than both gas giants and terrestrial planets?
I'd bet that the "solid state physics" of the interiors of planets and pulsars share that their internal structure is complicated by phase transitions. Phase transitions and details of a history of formation could lead to offsets between the regions where currents flow easily and those regions where there is higher resistance to current flows.
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Re: Both Uranus and Neptune Have Really Bizarre Magnetic Fields
Seems to me that there is more than one good opportunity here for a smart graduate student in search of an interesting research topic.
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Prof. Barnhardt to Klaatu in The Day the Earth Stood Still: "There are several thousand questions I'd like to ask you.”
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Re: Both Uranus and Neptune Have Really Bizarre Magnetic Fields
Makuser wrote: ↑Mon May 17, 2021 2:06 pm Hello Graeme. A very interesting article and link. I always like to bring something to the table, so here are two pages from a December 2019 Sky&Telescope magazine cover feature about Uranus and Neptune. The feature article contained information about the rings, numerous moons, and our next exploration launch to these giants. However I just scanned two pages which are related to your above link. This information is slightly older than the latest research by Tomoaki Kimura and Motohiko Murakam, but there is still much interesting reading here.
Cheers for the S&T link Marshall. I've not seen the moons pictured like that. The inner moons are very close radius and the outer moons in random oblique orbits.
Regards
Graeme
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ZWO EFW, ZWO OAG, ASI220MM Mini.
APM 11x70 ED APO Binoculars.
https://www.averywayobservatory.co.uk/
Celestron 9.25 f10 SCT, f6.3FR, CGX mount.
ASI1600MM Pro, ASI294MC Pro, ASI224MC
ZWO EFW, ZWO OAG, ASI220MM Mini.
APM 11x70 ED APO Binoculars.
https://www.averywayobservatory.co.uk/
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