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Old March 18th 18, 05:49 AM posted to sci.astro.amateur
RichA[_6_]
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Default 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.