Beautiful!
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Jörgen Sigvardsson wrote: I've never seen it myself Now I feel sad for both of us! How far north do you live? How much further would you need to go to see it?
Look at the world about you and trust to your own convictions. - Ansel Adams
Photography - The product of my passionI live just north of Vänern. I guess I'd have to go at least 900-1000 km before I'd be able to see it, which is quite a distance! I wish I had lots of money though, because I'd much rather see it from space.. :cool: -- Frivolous Theorem of Arithmetic: Almost all natural numbers are very, very, very large.
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I've never seen it myself. :sigh: -- Frivolous Theorem of Arithmetic: Almost all natural numbers are very, very, very large.
:wtf: Rickard Andersson Here is my card, contact me later! UIN: 50302279 Sonork: 37318 Interests: C++, ADO, SQL, Winsock, 0s and 1s
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:wtf: Rickard Andersson Here is my card, contact me later! UIN: 50302279 Sonork: 37318 Interests: C++, ADO, SQL, Winsock, 0s and 1s
Karlstad isn't very far north you know. Even in Östersund you don't see it.. I think. :~ -- Frivolous Theorem of Arithmetic: Almost all natural numbers are very, very, very large.
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I live just north of Vänern. I guess I'd have to go at least 900-1000 km before I'd be able to see it, which is quite a distance! I wish I had lots of money though, because I'd much rather see it from space.. :cool: -- Frivolous Theorem of Arithmetic: Almost all natural numbers are very, very, very large.
Jörgen Sigvardsson wrote: I live just north of Vänern w00t, so I can picture where you are then, what a gorgeous lake! :cool: Jörgen Sigvardsson wrote: I wish I had lots of money though, because I'd much rather see it from space.. Is this possible? I thought it was something to do with the earths atmosphere at that latitude which allowed it to be visible from there?
Look at the world about you and trust to your own convictions. - Ansel Adams
Photography - The product of my passion -
Jörgen Sigvardsson wrote: I live just north of Vänern w00t, so I can picture where you are then, what a gorgeous lake! :cool: Jörgen Sigvardsson wrote: I wish I had lots of money though, because I'd much rather see it from space.. Is this possible? I thought it was something to do with the earths atmosphere at that latitude which allowed it to be visible from there?
Look at the world about you and trust to your own convictions. - Ansel Adams
Photography - The product of my passionMegan Forbes wrote: Is this possible? I thought it was something to do with the earths atmosphere at that latitude which allowed it to be visible from there? I'm not sure, but I believe you can. If I've understood the cause of the aurora correctly, the light you see emitted are the effects of excited electrons releasing energy. Remember electron energy quantums? L-, K-, M- shells, etc?. Anyway, when an electron is de-excited, it releases the energy difference between the previous and the current quantum level. The energy difference yields a photon with a wave length consistent with the energy difference. (Hence different colors for different ions, because different matter behave different structure in their electron shells, and thus excited electrons release different amounts of energy, which means different wavelengths of the photons/light emitted). Anyway, the released photon is sent in an arbitrary direction, and thus the light distribution should be uniform in all directions (for many occurences of released photons!). That combined with the fact that earths magnetosphere is not within an event horizon (i.e. the point of no return of a black hole), photons should be emitted into space too. Hence, it should be possible to see it from space as well. I also know that satellites are used to measure auroras, so that should also indicate that they are visible from space. A photo from space (preferrably taken by me!) would be the ultimate proof :cool: -- Frivolous Theorem of Arithmetic: Almost all natural numbers are very, very, very large.
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Karlstad isn't very far north you know. Even in Östersund you don't see it.. I think. :~ -- Frivolous Theorem of Arithmetic: Almost all natural numbers are very, very, very large.
You mean you don't have colder than -10, -15 down there? OMG... Jörgen Sigvardsson wrote: Even in Östersund you don't see it.. I think. I think Abisko is the right place to stop by. Beautiful nature! Rickard Andersson Here is my card, contact me later! UIN: 50302279 Sonork: 37318 Interests: C++, ADO, SQL, Winsock, 0s and 1s
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It might be worth spending 3 months somewhere really cold and northern to see this[^].
Look at the world about you and trust to your own convictions. - Ansel Adams
Photography - The product of my passion -
It might be worth spending 3 months somewhere really cold and northern to see this[^].
Look at the world about you and trust to your own convictions. - Ansel Adams
Photography - The product of my passionAwesome! Speaking of photography, did you see this http://news.sel.sony.com/pressrelease/3920[^]
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It might be worth spending 3 months somewhere really cold and northern to see this[^].
Look at the world about you and trust to your own convictions. - Ansel Adams
Photography - The product of my passionThe 'Northern Lights' are often quite visible here in southern Ontario in Canada. Just two weeks ago while on holidays at the cottage, there was quite a fantastic display for several hours one evening. Unfortunately, you have to be away from the city in order to really appreciate the display. Before the really cold weather comes along in November, there will probably be some other displays as well. Next time I try to get some pics for you. :) Chris Meech If you spin a Chinese person around, do they become dis-oriented?
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You mean you don't have colder than -10, -15 down there? OMG... Jörgen Sigvardsson wrote: Even in Östersund you don't see it.. I think. I think Abisko is the right place to stop by. Beautiful nature! Rickard Andersson Here is my card, contact me later! UIN: 50302279 Sonork: 37318 Interests: C++, ADO, SQL, Winsock, 0s and 1s
Rickard Andersson18 wrote: You mean you don't have colder than -10, -15 down there? OMG... Sure we do, but auroras don't depend on temperature. At least not ground temperature. The temperature in the magnetosphere is very most likely either much hotter than on the ground of much colder. I don't know which it is, but I do know the temperature drops and rises at different levels in the atmosphere. I had a link to a temperature diagram somewhere.. Now, the aurora may depend indirectly on the temperature in the magnetosphere, as temperature is basically just a measurement of molecular movement speed. While the molecular movement may be a dependency of the aurora, the main dependency is the concentration and energy of electrons. The right conditions for auroras are around the poles, which is the main reason why you don't see auroras at the equator. :) Hey, why am I telling you this? Have you been skipping physics classes? :suss: :-D Rickard Andersson18 wrote: I think Abisko is the right place to stop by. Beautiful nature! If there's an aurora in the sky, my eyes wouldn't be directed below the horizon.. ;) -- Frivolous Theorem of Arithmetic: Almost all natural numbers are very, very, very large.
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Is every Swede on this site going to make me drool with jealousy by telling me how they've seen this beautiful event and I haven't?! :-D
Look at the world about you and trust to your own convictions. - Ansel Adams
Photography - The product of my passionWell, now that you brought it up, I'll have to tell you it's a really cool phenomenon to watch ;P I have seen it several times at Stockholm+ latitude. But it becomes more frequent and spectacular the further north you go. Cheers, Fredrik
"Felix qui potuit rerum cognoscere causas." -
In the (cold) winter here in Sweden I can travel about 300km (Kiruna) north to be sure to see this amazing phenomenon! But I can for sure see it where I live also a cold winter day. From Stockholm to Kiruna, about 1310km. :) Rickard Andersson Here is my card, contact me later! UIN: 50302279 Sonork: 37318 Interests: C++, ADO, SQL, Winsock, 0s and 1s
So when you're that far north does it happen almost every day, or more like once a week? (sorry for the ignorance :-O )
Look at the world about you and trust to your own convictions. - Ansel Adams
Photography - The product of my passion -
Well, now that you brought it up, I'll have to tell you it's a really cool phenomenon to watch ;P I have seen it several times at Stockholm+ latitude. But it becomes more frequent and spectacular the further north you go. Cheers, Fredrik
"Felix qui potuit rerum cognoscere causas."This is starting to seem like an exclusive club which I'm determined to join :laugh: :-D
Look at the world about you and trust to your own convictions. - Ansel Adams
Photography - The product of my passion -
Karlstad isn't very far north you know. Even in Östersund you don't see it.. I think. :~ -- Frivolous Theorem of Arithmetic: Almost all natural numbers are very, very, very large.
It can actually be seen in mid-Sweden sometime, I've seen it myself. You have to get away from the bright city lights. But of course the chances are waaaay better up north. Cheers, Fredrik
"Felix qui potuit rerum cognoscere causas." -
The 'Northern Lights' are often quite visible here in southern Ontario in Canada. Just two weeks ago while on holidays at the cottage, there was quite a fantastic display for several hours one evening. Unfortunately, you have to be away from the city in order to really appreciate the display. Before the really cold weather comes along in November, there will probably be some other displays as well. Next time I try to get some pics for you. :) Chris Meech If you spin a Chinese person around, do they become dis-oriented?
Chris Meech wrote: Next time I try to get some pics for you :-D Thanks! It must be awesome, lovely to hear that people who live where it occurs frequently don't take it for granted.
Look at the world about you and trust to your own convictions. - Ansel Adams
Photography - The product of my passion -
Awesome! Speaking of photography, did you see this http://news.sel.sony.com/pressrelease/3920[^]
It's a beauty isn't it! Still, I'd probably go for the 300D for the same price, simply because of the huge range of Canon lenses it can take.
Look at the world about you and trust to your own convictions. - Ansel Adams
Photography - The product of my passion -
It might be worth spending 3 months somewhere really cold and northern to see this[^].
Look at the world about you and trust to your own convictions. - Ansel Adams
Photography - The product of my passion -
This is starting to seem like an exclusive club which I'm determined to join :laugh: :-D
Look at the world about you and trust to your own convictions. - Ansel Adams
Photography - The product of my passionSsssch, we want to keep the club exclusive... :cool: Cheers, Fredrik
"Felix qui potuit rerum cognoscere causas." -
So when you're that far north does it happen almost every day, or more like once a week? (sorry for the ignorance :-O )
Look at the world about you and trust to your own convictions. - Ansel Adams
Photography - The product of my passionNah, not really... not where I live but in Abisko and other places in the very north of Sweden it happens more often. Not really sure how often. Rickard Andersson Here is my card, contact me later! UIN: 50302279 Sonork: 37318 Interests: C++, ADO, SQL, Winsock, 0s and 1s
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Rickard Andersson18 wrote: You mean you don't have colder than -10, -15 down there? OMG... Sure we do, but auroras don't depend on temperature. At least not ground temperature. The temperature in the magnetosphere is very most likely either much hotter than on the ground of much colder. I don't know which it is, but I do know the temperature drops and rises at different levels in the atmosphere. I had a link to a temperature diagram somewhere.. Now, the aurora may depend indirectly on the temperature in the magnetosphere, as temperature is basically just a measurement of molecular movement speed. While the molecular movement may be a dependency of the aurora, the main dependency is the concentration and energy of electrons. The right conditions for auroras are around the poles, which is the main reason why you don't see auroras at the equator. :) Hey, why am I telling you this? Have you been skipping physics classes? :suss: :-D Rickard Andersson18 wrote: I think Abisko is the right place to stop by. Beautiful nature! If there's an aurora in the sky, my eyes wouldn't be directed below the horizon.. ;) -- Frivolous Theorem of Arithmetic: Almost all natural numbers are very, very, very large.
Jörgen Sigvardsson wrote: Hey, why am I telling you this? Have you been skipping physics classes? Not really, but it wasn't my fave class... :~ Rickard Andersson Here is my card, contact me later! UIN: 50302279 Sonork: 37318 Interests: C++, ADO, SQL, Winsock, 0s and 1s