HUBBLE IMAGES REVEAL JUPITER'S AURORAS

HUBBLE IMAGES REVEAL JUPITER'S AURORAS

Hubble Images Reveal Jupiter's Auroras

October 17, 1996
Photo No.: STScI-PRC96-32

These images, taken by the Hubble Space Telescope, reveal changes in Jupiter's auroral emissions and how small auroral spots just outside the emission rings are linked to the planet's volcanic moon, Io. The images represent the most sensitive and sharply-detailed views ever taken of Jovian auroras.

The top panel pinpoints the effects of emissions from Io, which is about the size of Earth's moon. The black-and-white image on the left, taken in visible light, shows how Io and Jupiter are linked by an invisible electrical current of charged particles called a "flux tube." The particles - ejected from Io (the bright spot on Jupiter's right) by volcanic eruptions - flow along Jupiter's magnetic field lines, which thread through Io, to the planet's north and south magnetic poles. This image also shows the belts of clouds surrounding Jupiter as well as the Great Red Spot.

The black-and-white image on the right, taken in ultraviolet light about 15 minutes later, shows Jupiter's auroral emissions at the north and south poles. Just outside these emissions are the auroral spots. Called "footprints," the spots are created when the particles in Io's "flux tube" reach Jupiter's upper atmosphere and interact with hydrogen gas, making it fluoresce. In this image, Io is not observable because it is faint in the ultraviolet.

The two ultraviolet images at the bottom of the picture show how the auroral emissions change in brightness and structure as Jupiter rotates. These false-color images also reveal how the magnetic field is offset from Jupiter's spin axis by 10 to 15 degrees. In the right image, the north auroral emission is rising over the left limb; the south auroral oval is beginning to set. The image on the left, obtained on a different date, shows a full view of the north aurora, with a strong emission inside the main auroral oval.

The images were taken by the telescope's Wide Field and Planetary Camera 2 between May 1994 and September 1995.

Credit: J. Clarke and G Ballester (University of Michigan), J. Trauger and R. Evans (Jet Propulsion Laboratory) and NASA

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Jonathan Eisenhamer -- [email protected]
Office of Public Outreach -- [email protected]

Last modified: Thu Oct 17 12:13:22 EDT 1996


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HUBBLE IMAGES REVEAL JUPITER'S AURORAS
Ralph,

The pics that you dug up suggest that NASA'S model that the aurora is caused by an incoming stream of charged particles is for the birds. It isn't possible that a significant-enough stream of particles reaches all the way out to Jupiter, what to speak of Saturn.

I think that I first heard this argument in Rod's book.

Later,

Dharma/Dean

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Hubble Images Reveal Jupiter's Auroras

October 17, 1996
Photo No.: STScI-PRC96-32

These images, taken by the Hubble Space Telescope, reveal changes in Jupiter's auroral emissions and how small auroral spots just outside the emission rings are linked to the planet's volcanic moon, Io. The images represent the most sensitive and sharply-detailed views ever taken of Jovian auroras.

The top panel pinpoints the effects of emissions from Io, which is about the size of Earth's moon. The black-and-white image on the left, taken in visible light, shows how Io and Jupiter are linked by an invisible electrical current of charged particles called a "flux tube." The particles - ejected from Io (the bright spot on Jupiter's right) by volcanic eruptions - flow along Jupiter's magnetic field lines, which thread through Io, to the planet's north and south magnetic poles. This image also shows the belts of clouds surrounding Jupiter as well as the Great Red Spot.

The black-and-white image on the right, taken in ultraviolet light about 15 minutes later, shows Jupiter's auroral emissions at the north and south poles. Just outside these emissions are the auroral spots. Called "footprints," the spots are created when the particles in Io's "flux tube" reach Jupiter's upper atmosphere and interact with hydrogen gas, making it fluoresce. In this image, Io is not observable because it is faint in the ultraviolet.

The two ultraviolet images at the bottom of the picture show how the auroral emissions change in brightness and structure as Jupiter rotates. These false-color images also reveal how the magnetic field is offset from Jupiter's spin axis by 10 to 15 degrees. In the right image, the north auroral emission is rising over the left limb; the south auroral oval is beginning to set. The image on the left, obtained on a different date, shows a full view of the north aurora, with a strong emission inside the main auroral oval.

The images were taken by the telescope's Wide Field and Planetary Camera 2 between May 1994 and September 1995.

Credit: J. Clarke and G Ballester (University of Michigan ), J. Trauger and R. Evans (Jet Propulsion Laboratory) and NASA


Jonathan Eisenhamer -- [email protected]
Office of Public Outreach -- [email protected]

Last modified: Thu Oct 17 12:13:22 EDT 1996


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HUBBLE IMAGES REVEAL JUPITER'S AURORAS

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To: Members

From: Dharma/Dean

Here is that piece again from Ray Palmer. Notice that the Russians say: ". But data from many Russian and other expeditions showed that the compass needle points straight down for a very long distance across the Arctic Ocean ...." This suggests that, all along the rim of the oval or circluar opening, the magnetic lines of force nose-dive straight down at a 90* angle even before the actual neck of the opening is reached. I say this because if you were at the neck of the opening with your compass pointing straight down at 90*, you would be able to look horizontally and see the inner sun, and since the compass points straight down almost all across the Arctic basin ( I exagerrate a little ), the opening would have to be huge in size. But everywhere that the compass points downward the inner sun isn’t visible, and the opening doesn’t seem to be THAT huge, so I think that the magnetic lines of force point straight downward evewn before the neck of the opening is reached.

Comments?

" Here is what the Russians say: `Navigators in the high latitudes have always been troubled by the odd behavior of their magnetic compasses caused by apparent irregularities and asymmetries in the magnetic field of the Earth. Early magnetic maps have been drawn on this assumption, based on hopeful guesses, that the North Magnetic Pole is virtually a point. Accordingly, it was expected that the compass needle, which dips more steeply as it approaches the Magnetic Pole, would point straight down, or very nearly so, at the Magnetic Pole itself. But data from many Russian and other expeditions showed that the compass needle points straight down for a very long distance across the Arctic Ocean, from a point northwest of the Taimyr Peninsula to another point in the Arctic Archipelago. [ See sixth image down:

http://www.skyboom.com/hollowearthpuranas/index6.html ]
This discovery first inspired the hypothesis that there is a second North Magnetic Pole, tentatively located at 86 degrees East longitude. More refined observation has disposed of this idea. The map of the magnetic field now shows the magnetic meridians running close together in a thick bunch of lines from the North Magnetic Pole in the Arctic Archipelago to Siberia. The North Magnetic Pole, once thought to be virtually a point in the Arctic Archipelago, has been shown by recent investigations to extend across the polar basin to the Taimyr Peninsula in Siberia.'

HUBBLE IMAGES REVEAL JUPITER'S AURORAS
Frode,

I think that I'll have to get this book called "Gravitational Force of the Sun," by Dr. Pari Spolter. It is really important to the hollow Earth theory to show that gravity is not related to mass alone, and Cater can't be the only source of information that I/we look at. Thanks for the tip.

Have you actually read it?

Dean

Re: [allplanets-hollow] Gravity and the
Sun

Frode,
I think that I'll have to
get this book called "Gravitational Force of the Sun,"
by Dr. Pari Spolter. It is really important to the hollow Earth theory
to show that gravity is not related to mass alone, and Cater can't be
the only source of information that I/we look at. Thanks for the
tip.
Have you actually read it?

Nope! But it is on my buying list. So when I get some extra time
and money to some more reading I will bye it too.

Frode

···

Dean


Re: [allplanets-hollow] Gravity and the Sun
Frode,

I re-wrote the article Clouds Don't Fall. What is did is get my terminology straight throughout the article mostly, and I cleaned up the end of it. I originally wrote it for a certain audience and I don't think that the ending was apporpriate for general readers. http://skyboom.com/hollowearthpuranas/index8.html

Dean

Re: [allplanets-hollow] Gravity and the Sun
From The Smokey God-

The old Norseman also maintained that from the farthest points of land on the islands of Spitzbergen and Franz Josef Land, flocks of geese may be seen annually flying still farther northward, just as the sailors and explorers record in their log-books. No scientist has yet been audacious enough to attempt to explain, even to his own satisfaction, toward what lands these winged fowls are guided by their subtle instinct.

Dharma/Dean

Re: [allplanets-hollow] Clouds Don't Fall
Re-written
Dean,

I just skimmed through it and did not find anything that gave me
an uneasy feeling. Just one thing thought: The Compton effect was not
a recent discovery but an old one. I think it was between 1920-30 or
something.

Frode

···

Frode,
I re-wrote the article Clouds Don't Fall.
What is did is get my terminology straight throughout the article
mostly, and I cleaned up the end of it. I originally wrote it for a
certain audience and I don't think that the ending was apporpriate for
general readers. http://skyboom.com/hollowearthpuranas/index8.html
Dean