Celestia Forums

Io is suposesed to hav an arouria due to the locolised atmosphear created by its valcanios.

so it should be a night texture or a cloudmap

If anybody has this pleas post it

Auscreely,
I am sorry to disappoint you but Io has no aurora. For a planetary body to have an aurora it needs to have some kind of magnetic feild and an atmosphere. Io has no magnetic feild and a tenuous atmoshere at best. What you are speaking of is the the Jupiter Io flux tube. This is a region shaped like a tube that is made up of very highly electricly charged particles that flow between Jupiter and Io through Jupiter's north magnetic pole through Io and back to Jupiter's south magnetic pole. This flux tube carries back the sulfur and other particles from Io and introduces them into Jupiter's upper atmosphere and aurora. There might be a very slight flouresence to the the thin Io atmosphere but I doubt our human eyes would see it from orbit of Io. this flux tude of highly charged particles is also believed to one of the main reasons why Io is volcanicly active. Io is basicly being constantly microwaved so to speak. This would keep the interior molten. Tidle stresses from Jupiter and the outer moons would cause the fracturing of the crust so volcanos can form. Here is a URL that cn fill you in more on the story of the flux tube.
http://www.star.ucl.ac.uk/~idh/solarsys ... jupaur.htm
Hope this helps out.

I was watching "The sollersystems wors weather" the name was close to that

when thay got to Io thay showed arourias all over the planit.
Thay sed that a locolised atmosphear was created by all of the stuf the valcanios spew out, and the arouial lights wear created by jupiters own emens gravity.

There are indeed aurorae on Io, for pictures see:
http://www.solarviews.com/cap/jup/PIA01637.htm
They're produced by the same mechanism as Earth's aurorae, except the incoming particles aren't from the solar wind, but from Jupiter's intense radiation belts. Because Io doesn't have a magnetic field of its own, the aurorae are spread over its whole surface, brightest where there has been recent outgassing. Earth's aurorae are produced in pretty tenuous gas at high altitudes, so I guess it's at least possible you might actually be able to see this with naked eye on Io, too, if you were on the night side, or if Io was in eclipse.

Grant

granthutchison wrote:There are indeed aurorae on Io, for pictures see:
http://www.solarviews.com/cap/jup/PIA01637.htm
They're produced by the same mechanism as Earth's aurorae, except the incoming particles aren't from the solar wind, but from Jupiter's intense radiation belts. Because Io doesn't have a magnetic field of its own, the aurorae are spread over its whole surface, brightest where there has been recent outgassing. Earth's aurorae are produced in pretty tenuous gas at high altitudes, so I guess it's at least possible you might actually be able to see this with naked eye on Io, too, if you were on the night side, or if Io was in eclipse.

Grant

These aororia, sorry arouria, are indeed great!

Bye Fridger