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Sub-Auroral Ion Drifts discovered to cause unusual purple aurora
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Sub-Auroral Ion Drifts discovered to cause unusual purple aurora
On Thursday, 15 March 2018 04:10:43 UTC+1, Quadibloc wrote:
I ran across this news item: https://phys.org/news/2018-03-myster...cientists.html John Savard Cue RichA to complain about light pollution: |
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Sub-Auroral Ion Drifts discovered to cause unusual purple aurora
On Thursday, 15 March 2018 02:20:14 UTC-4, Chris.B wrote:
On Thursday, 15 March 2018 04:10:43 UTC+1, Quadibloc wrote: I ran across this news item: https://phys.org/news/2018-03-myster...cientists.html John Savard Cue RichA to complain about light pollution: Aurora can ruin observing. |
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Sub-Auroral Ion Drifts discovered to cause unusual purple aurora
On Friday, 16 March 2018 09:15:16 UTC+1, RichA wrote:
On Thursday, 15 March 2018 02:20:14 UTC-4, Chris.B wrote: On Thursday, 15 March 2018 04:10:43 UTC+1, Quadibloc wrote: I ran across this news item: https://phys.org/news/2018-03-myster...cientists.html John Savard Cue RichA to complain about light pollution: Aurora can ruin observing. So can the sun or the moon. Both are valid targets for observation in their own right. Why do those who suffer from light pollution demand dark skies for deep sky viewing? That's like living on the beach in Florida and expecting local ski resorts! |
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Sub-Auroral Ion Drifts discovered to cause unusual purple aurora
On Friday, 16 March 2018 06:25:32 UTC-4, Chris.B wrote:
On Friday, 16 March 2018 09:15:16 UTC+1, RichA wrote: On Thursday, 15 March 2018 02:20:14 UTC-4, Chris.B wrote: On Thursday, 15 March 2018 04:10:43 UTC+1, Quadibloc wrote: I ran across this news item: https://phys.org/news/2018-03-myster...cientists.html John Savard Cue RichA to complain about light pollution: Aurora can ruin observing. So can the sun or the moon. Both are valid targets for observation in their own right. Why do those who suffer from light pollution demand dark skies for deep sky viewing? That's like living on the beach in Florida and expecting local ski resorts! More like wish for than demand. I've seen aurora cover 2/3rds of the sky, at a measly 44 deg. N. latitude. |
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Sub-Auroral Ion Drifts discovered to cause unusual purple aurora
On Sunday, 18 March 2018 06:49:32 UTC+1, RichA wrote:
More like a wish for than demand. I've seen aurora cover 2/3rds of the sky, at a measly 44 deg. N. latitude. Measly? I'm @55N and only rarely get any purple rain on my parade. It seems that your paranoia has quite a firm base after all. Have you considered moving to somewhere more hospitable? I hear Florida is nice, for those who routinely walk on water. ;-) |
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Sub-Auroral Ion Drifts discovered to cause unusual purple aurora
On Sat, 17 Mar 2018 22:49:29 -0700 (PDT), RichA
wrote: Why do those who suffer from light pollution demand dark skies for deep sky viewing? That's like living on the beach in Florida and expecting local ski resorts! More like wish for than demand. I've seen aurora cover 2/3rds of the sky, at a measly 44 deg. N. latitude. That must have happened in North America. And then your geomagnetic latitude was more like 60 degrees. |
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