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Post time 2018-4-28 16:57:23 |Display all floors
Ratfink Post time: 2018-4-28 00:46
Your thinking is correct Robert.  In the northern hemisphere it's the Aurora Borealis and in the s ...

I don't know if I'll ever seen either one. I'm parked here at 25 degrees North latitude and if I ever
take a long distance vacation it probably won't be to some place cold like where my friend vacationed.
None of us get to see everything although some might think they have.
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Post time 2018-4-28 19:56:04 |Display all floors
This post was edited by Ratfink at 2018-4-28 20:04
robert237 Post time: 2018-4-28 16:57
I don't know if I'll ever seen either one. I'm parked here at 25 degrees North latitude and if I e ...

I do understand your position Robert. As you get older going to cold locations becomes far less appealing.
Also, in most cases the aurora don't appear in colour, often they are to the human eye, pale green or white but it's only when  photographed do the full gamut of colours appear.
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Post time 2018-4-28 20:43:14 |Display all floors
Ratfink Post time: 2018-4-28 03:56
I do understand your position Robert. As you get older going to cold locations becomes far less app ...

That's exactly what my friend told me.
He gave me a link to all the photos he took including the Northern Lights.
I told him I imagine it's a thousand times better in real life as most sights are; skies, clouds, etc.
He replied with a laugh telling me he experimented with the shutter speed and putting the camera
on a tripod to get a decent photo. He said exactly what you said and that they don't dance around
in multiple colors like you see on TV. He said he only saw a faint green streak but it came out better
with a long exposure on a tripod. Bummer.
Well I guess missing the Northern Lights (or the Southern Lights) isn't as bad as I thought.
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Post time 2018-4-29 02:22:28 |Display all floors
This post was edited by Ratfink at 2018-4-29 02:23
robert237 Post time: 2018-4-28 20:43
That's exactly what my friend told me.
He gave me a link to all the photos he took including the N ...

Though you are missing one of natures most spectacular displays I do concur with your friend that it's to many people a let down.  However the same can be said for viewing your first galaxy through a telescope. There's no colour, just gray and white or a monochrome black and white if you prefer.  Colour's can't be brought out until you use long exposures with RGB filtration.  

In the old film days we had to make do with filtering black and white film after it had been "hypered" or in otherwords left in a dark place unspooled while the film was bathed in a hyper sensitising gas that was a mixture of nitrogen and other elements. It would effectively push the film from say ISO 100 to ISO 800~3200 depending on how long it was left in the hypering gas solution and how quickly you used the film after hypering it. Typically the film would last a week or two before it needed re hypering.

Now we use CCD sensors with multiple stage cooling to reduce electrical noise to a bare minimum. My current "good" camera is far better than the top observatory/scientific cameras of 20 years ago and it costs a tiny fraction of the cost too.
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