(meteorobs) Question on an interesting meteor -Enhanced Picture

[Larry]

I am submitting a simple question to all, trying another tact. :-)

If it were NOT modified or modulated by these "winds".....what other 
conclusion could be drawn by the preponderance of the visual evidence?

YCSentinel


----- Original Message ----- 
From: "Chris Peterson" <clp at alumni.caltech.edu>
To: "Global Meteor Observing Forum" <meteorobs at meteorobs.org>
Sent: 2009/09/09 10:27
Subject: Re: (meteorobs) Question on an interesting meteor -Enhanced Picture


> The so-called ISO setting for digital cameras is pretty meaningless once 
> you
> are outside the normal sub-second exposure range. For longer exposures, 
> you
> are better off just considering the QE of the sensor, which while poor
> compared with a good astronomical CCD camera is still at least 10 times
> higher than film. And, as you note, there is no reciprocity failure.
>
> I have two-minute Milky Way exposures made on film, and two-minute 
> exposures
> made with a DSLR, and the latter show _significantly_ deeper stars and
> objects.
>
> I think the video on the IMO site of an evolving dust trail gives a pretty
> good indication of how that can proceed, and doesn't seem all that 
> different
> from what the still photo under discussion shows.
>
> Chris
>
> *****************************************
> Chris L Peterson
> Cloudbait Observatory
> http://www.cloudbait.com
>
>
> ----- Original Message ----- 
> From: "Ed Majden" <epmajden at shaw.ca>
> To: "Global Meteor Observing Forum" <meteorobs at meteorobs.org>
> Sent: Wednesday, September 09, 2009 11:17 AM
> Subject: Re: (meteorobs) Question on an interesting meteor -Enhanced 
> Picture
>
>
>> Hi Chris:
>> Woops, my error re the shower identification and velocity.  Is there
>> that much difference between a ccd image and film if shot at the same
>> film speed?  I guess reciprocity failure would be a factor if using
>> film.  I would still like to see a video image of such a meteor as
>> the main body would have passed and you would just be examining the
>> train.
>> Ed
>
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