Re: [Utah-astronomy] 2012 Annular Eclipse - photographing it

12 Sep 2011


      ...
I still have the article you wrote for the Desert News about that trip.
Yes, Erik, that was it! I thought it was beautiful and interesting. And
...
you're right about interest in astronomy growing.Thanks, Joe
________________________________
From: "erikhansen@thebluezone.net" <erikhansen@thebluezone.net>
To: Utah Astronomy <utah-astronomy@mailman.xmission.com>
Sent: Monday, September 12, 2011 1:14 PM
Subject: Re: [Utah-astronomy] 2012 Annular Eclipse - photographing it
...
I think that was when I first met you Joe, I remember 30-40 people at the
location we had chosen, I recall some planned activities in town so that
may have kept people in the city. As I recall you stayed at the same
hotel, or at least had breakfast at the same location. It was east of Las
Cruzes, New Mexico. The Mexican Eatery I had lunch at was memorable.
I think interest in Astronomy has grown since then. It was not the same
experience as a total eclipse, but still spectacular. It was well after
sunrise, 10 or 11 as I recall. There is a much larger area that an annular
can be viewed from.
I brought the clubs DayStar and was well worthwhile. H-Alpha scopes are
also much more common than nearly 20 years ago.
Depending on the location 30-40 people could be a "crowd".
I don't think a huge number of people will come to Utah. In 1995 I drove
...
to the El Paso vicinity to meet up with SLAS members for the annular
eclipse, and I don't remember seeing many others. -- Joe
________________________________
From: "erikhansen@thebluezone.net" <erikhansen@thebluezone.net>
To: Utah Astronomy <utah-astronomy@mailman.xmission.com>
Sent: Monday, September 12, 2011 11:19 AM
Subject: Re: [Utah-astronomy] 2012 Annular Eclipse - photographing it
...
There probably are some sites in SE Utah that may be good as well. I am
going to plot the path with recreation maps I have that show all
campgrounds and view points with elevations. I would not be surprised if
a lot of people from California and Arizona come to Cedar City area.
Arizona, Nevada, and California have a lot of amateur astronomers. I am
sure photographers are probably seeking something more scenic than
Kanarville.
Snow at Bryce may also pose some problems, it is kind of early for the
Astro Festival.
I guess another question is how prone to damage are digital cameras to
solar radiation?
HEHE, Cedar Breaks is well within the path AND the time of maximum
eclipse
...
is about 4 seconds short of the maxium time.ÃÂ  Now, if I can deal
with
the
issues Erik raised ....
----- Original Message -----
From: jcarman6@q.com
To: "Utah Astronomy" <utah-astronomy@mailman.xmission.com>
Sent: Sunday, September 11, 2011 12:03:00 PM
Subject: Re: [Utah-astronomy] 2012 Annular Eclipse - photographing it
Thanks Erik, that is helpful.ÃÂ  I didn't think about 10,000 feet in
May.
You're right, there will probably still be snow on the ground then.ÃÂ 
It
will definitely be cold - if they are open at all.ÃÂ Â  Also the more
I
think
about it, the maximum eclipse at centerline is 4-1/2 minutes.ÃÂ  It
would
be
a lot less at Cedar Breaks.ÃÂ  Less time for a good shot.ÃÂ  I need
to go
back
to the NASA site to see if Cedar Breaks is even inside the blue
lines.ÃÂ 
As
I recall, it is, but all my thoughts are flotsom if it isn't.ÃÂ  The
polariing filter is also a big help.ÃÂ  Didn't think of that.
I recall, when I went to LA for the Annular a few years after 1991,
that
it too was at sunset, on the horizon.ÃÂ  I took a picture without
filter,
BUT there were lots of clouds, in fact the clouds blocked the sun just
at
maximum eclipse began.ÃÂ  That may be why I got a decent picture.ÃÂ 
Thus
my
question about 8% of the sun and the need for a filter.
Thanks for the response.
----- Original Message -----
From: erikhansen@thebluezone.net
To: "Utah Astronomy" <utah-astronomy@mailman.xmission.com>
Sent: Sunday, September 11, 2011 10:43:24 AM
Subject: Re: [Utah-astronomy] 2012 Annular Eclipse - photographing it
...
Being so low on the horizon may afford photographs withoutÃÂ  filter
or
perhaps a polarizing filter.
Hi Joan, You absolutely need a solar filter for viewing a partial
eclipse.
...
It's only safe to look at a solar eclipse during totality. I suppose
you
could take an extremely fast photo of the partial without a solar
filter,
without harming the camera,ÃÆÃ¢â¬Å¡ÃâÃÂ  but it would be hard
to take a
picture
without looking through the viewfinder or looking at the sun's
vicinity
while holding the camera up to it. I'd get solar filters for viewing
and
photography. Best wishes, Joe
________________________________
From: J E CARMAN <jcarman6@q.com>
To: utah-astronomy@mailman.xmission.com
Sent: Saturday, September 10, 2011 11:54 PM
Subject: [Utah-astronomy] 2012 Annular Eclipse - photographing it
IÃÆÃÂ¢ÃÂ¢Ã¢â¬Å¡ÃÂ¬ÃÂ¢Ã¢â¬Å¾ÃÂ¢ve
ÃÆÃÂ¢ÃÂ¢Ã¢â¬Å¡ÃÂ¬Ãâ¦Ã¢â¬ÅsnaggedÃÆÃÂ¢ÃÂ¢Ã¢â¬Å¡ÃÂ¬ÃÂ¯ÃÂ¿ÃÂ½
a map of
the center lineÃÆÃ¢â¬Å¡ÃâÃÂ  from the
NASA website.ÃÆÃ¢â¬Å¡ÃâÃÂ 
It shows the center line crossing US Highway 91 just south of
Kanarraville.
There is a specific longitude and latitude .ÃÆÃ¢â¬Å¡ÃâÃÂ  Then
a
ÃÆÃÂ¢ÃÂ¢Ã¢â¬Å¡ÃÂ¬Ãâ¦Ã¢â¬Åpop-upÃÆÃÂ¢ÃÂ¢Ã¢â¬Å¡ÃÂ¬ÃÂ¯ÃÂ¿ÃÂ½
widow
appeared, showingÃÆÃ¢â¬Å¡ÃâÃÂ  the duration and event
times.ÃÆÃ¢â¬Å¡ÃâÃÂ  Much
to my
dismay, the
event times show the date 2012/05/21.ÃÆÃ¢â¬Å¡ÃâÃÂ ÃÂ  The time
was listed in
UT, so
IÃÆÃÂ¢ÃÂ¢Ã¢â¬Å¡ÃÂ¬ÃÂ¢Ã¢â¬Å¾ÃÂ¢m thinking the
ÃÆÃÂ¢ÃÂ¢Ã¢â¬Å¡ÃÂ¬Ãâ¦Ã¢â¬ÅdateÃÆÃÂ¢ÃÂ¢Ã¢â¬Å¡ÃÂ¬ÃÂ¯ÃÂ¿ÃÂ½
is based on UT and not local
time.ÃÆÃ¢â¬Å¡ÃâÃÂ  But I
donÃÆÃÂ¢ÃÂ¢Ã¢â¬Å¡ÃÂ¬ÃÂ¢Ã¢â¬Å¾ÃÂ¢t recall
how much of a difference there is between UT and
MST.ÃÆÃ¢â¬Å¡ÃâÃÂ  The UT
for
maximum
eclipse was 01:33:48 0.ÃÆÃ¢â¬Å¡ÃâÃÂ  Is there that much
difference between
UT and
MST?
I guess it really is only about 7 hours.ÃÆÃ¢â¬Å¡ÃâÃÂ 
Also, someone mentioned that the coverage would be
92%.ÃÆÃ¢â¬Å¡ÃâÃÂ  That
still
leaves a lot of sun around the edges, although substantially
reduced.ÃÆÃ¢â¬Å¡ÃâÃÂ  Do
I need
a solar filter for the camera?ÃÆÃ¢â¬Å¡ÃâÃÂ ÃÂ  I
donÃÆÃÂ¢ÃÂ¢Ã¢â¬Å¡ÃÂ¬ÃÂ¢Ã¢â¬Å¾ÃÂ¢t
think so, but I am
posing the
question.
Also, if the eclipse is taking place at about 10 or 11 degrees
ÃÆÃÂ¢ÃÂ¢Ã¢â¬Å¡ÃÂ¬ÃÂ¢Ã¢âÂ¬Ãâ
thatÃÆÃÂ¢ÃÂ¢Ã¢â¬Å¡ÃÂ¬ÃÂ¢Ã¢â¬Å¾ÃÂ¢s above the horizon,
right?ÃÆÃ¢â¬Å¡ÃâÃÂ  Even if
there are mountains
to the
west in the distance,
wonÃÆÃÂ¢ÃÂ¢Ã¢â¬Å¡ÃÂ¬ÃÂ¢Ã¢â¬Å¾ÃÂ¢t that affect what we see if
we are just outside
of
Kanarraville.ÃÆÃ¢â¬Å¡ÃâÃÂ 
DonÃÆÃÂ¢ÃÂ¢Ã¢â¬Å¡ÃÂ¬ÃÂ¢Ã¢â¬Å¾ÃÂ¢t we want to be higher
ÃÆÃÂ¢ÃÂ¢Ã¢â¬Å¡ÃÂ¬ÃÂ¢Ã¢âÂ¬Ãâ i.e, in
the mountains to the
east of
Kanarraville (not
sure that is even possible)
I was thinking Cedar Breaks has a pull out (10,000 feet, clean low
western
horizon, but not near the centerline)ÃÆÃ¢â¬Å¡ÃâÃÂ  Easy to
drive
to.ÃÆÃ¢â¬Å¡ÃâÃÂ  If you
are
there ÃÆÃÂ¢ÃÂ¢Ã¢â¬Å¡ÃÂ¬ÃÂ¢Ã¢âÂ¬Ãâ probably
slightly north of Cedar City, how much is the eclipse
impacted?ÃÆÃ¢â¬Å¡ÃâÃÂ 
Would
you still get the ring of fire (centered)?ÃÆÃ¢â¬Å¡ÃâÃÂ ÃÂ  As
the moon is
passing
in
front of the sun, even
if you are at Cedar City, wonÃÆÃÂ¢ÃÂ¢Ã¢â¬Å¡ÃÂ¬ÃÂ¢Ã¢â¬Å¾ÃÂ¢t
you still get a
reasonably
centered ring
of fire?ÃÆÃ¢â¬Å¡ÃâÃÂ 
Opinions please
JoanÃÆÃ¢â¬Å¡ÃâÃÂ  .ÃÆÃ¢â¬Å¡ÃâÃÂ 
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Re: [Utah-astronomy] 2012 Annular Eclipse - photographing it

erikhansen＠thebluezone.net