Re: RE: [APML] Sierra Star Trails Question

["Chris Cook" <chris@cookphoto.com>]

It might be an aurora but usually that far south, they are red...... see
Chris Schur's aurora cam pics from AZ.  His are all red or pinkish red.
Even from my home at 42N, I've only seen one green aurora and that was
during a very intense geomagnetic storm.  Its not LP.  I've been backpacking
all over the Sierra, including the Lake Sabrina, South Lake, Pine Creek,
Dusy Basin regions.  There no LP up there.  If there's no moon, its inky
fricking black.

What really peaks my interest though, is that there is a guy on the Fred
Miranda forums that has posted several 20D shots from Glacier Point in
Yosemite that recorded a weird green patchy haze, even when shooting E and
SE.  Its still unexplained.

Chris

-----------------------------
Chris Cook Photography
www.cookphoto.com


----- Original Message ----- 
From: <whetzel@cox.net>
To: "Discussion of Film Astrophotography" <astro-photo@seds.org>
Sent: Tuesday, August 23, 2005 9:43 PM
Subject: RE: RE: [APML] Sierra Star Trails Question


> The site is 25 miles west of Bishop CA. It's actually pretty close to the
Nevada border. A delightful 4.5 hour mule ride put us in our wilderness
camp. Sacramento is about 150 miles - mostly West of where we were at. I was
turned around earlier - Reno is actually 200 miles northwest of where we
were. Looking directly North your line of site would pass 50 miles to the
east of Reno and a good 75 from Tahoe.
>
> Other shots from the trip on different nights of approximately the same
exposure time show little if any green glow.
>
> I've visually seen aurora 300 miles further south in the CA desert -
granted a rare occurance - and it was red. With a 1.5 hour exposure I'd
think it might pick up a faint green glow if the aurora was active. Looking
at KP indexes for the last few days they are showing readings of 9 with some
consistency and the explanations on the site show that the glow would extend
as far south as where we were with this type of reading.
>
> But in the end who knows :-) - I still like the effect.
>
> Allan
>
>
>
>
> >
> > From: Alan Voetsch <alanv12952@yahoo.com>
> > Date: 2005/08/23 Tue PM 08:59:13 EDT
> > To: Discussion of Film Astrophotography <astro-photo@seds.org>
> > Subject: RE: RE: [APML] Sierra Star Trails Question
> >
> > > >With the exception of Reno Nevada - 200 miles to the northeast from
> > > this site -there are very few lights in the area.
> >
> > Along that same line would be the South Lake Tahoe area, although a bit
> > closer. Both areas are tourist and gambling areas. LOTS of lights.
> >
> > Just guessing  here, but wouldn't you also have the Central Valley
> > towns around Sacramento to your north, or NW? Must be half a million
> > people easily.
> >
> > Alan
> >
> >
> >
> > SCT Astrophotography: http://www.pbase.com/avoetsch/astrophotography
> > FS-102 G-11/Gemini: http://www.pbase.com/avoetsch12952/tak_fs102
> > & http://www.pbase.com/avoetsch12952/fs102
> > & http://www.pbase.com/avoetsch12952/takpf
> >
> >
> >
> > ____________________________________________________
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> > http://www.yahoo.com/r/hs
> >
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