Re: [APML] Aurora pics from July 24

[George Anderson <georgea@cam.org>]

Hi Chris

Here is the set of emission lines for hydrogen. It depends on how
excited the electron is and how many shell levels it slides as to what
wavelength it emits when the photon is released (over simplified).

374.9   377.0   379.7   383.4   388.8   396.9   410.1   433.9   486.0  
656.1  

George Anderson
Montreal Canada

Clear skies and good health

Chris Schur wrote:
> 
> Ok, so I see a huge plume extending across the sky.
> That describes the shape, but I also see red, green
> too.  I thought hydrogen is red.  Maybe only in deep
> space?
> 
> Chris
> --- Dominic Cantin <dominiccantin@yahoo.ca> wrote:
> 
> > Hi Chris ,
> >
> > I don't have the scientific description but an image
> > worth a thousand words ;)
> >
> > Hydrogene arc :
> >
> > http://www.spacew.com/gallery/image002658.html
> >
> > http://www.spacew.com/gallery/image002692.html
> >
> > http://www.pbase.com/image/31831093
> >
> > http://www.pbase.com/image/31831094
> >
> > http://www.spacew.com/gallery/image003268.html
> >
> > http://astrosurf.com/aurores/110502_7.jpg
> >
> > Regular aurora :
> >
> > http://www.pbase.com/image/31831096
> >
> > http://www.pbase.com/image/31831097
> >
> > http://www.spacew.com/gallery/image003266.html
> >
> > http://www.spacew.com/gallery/image003264.html
> >
> > Clear skies !
> >
> > Dom :)
> >
> > Chris Schur <cschur@therim.com> wrote:
> > Stan or Dominic, whats a hydrogen arc compared to
> > regular aurora?
> >
> > Lost in the monsoon,
> >
> > chris
> >
> >
> >
> > Dominic Cantin
> >
> > http://astrosurf.com/aurores
> >
> > http://spacew.com/gallery/DominicCantin
> >
> >
> >
> >
> >
> >
> >
> > ---------------------------------
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> >
> 
> 
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