(meteorobs) OT -Proceeding with IR block fireball detonation system.
Francisco Ocaña
albireo3000 at yahoo.es
Sat Nov 29 14:01:50 EST 2008
Well, what about using a difraction grating? Just putting it in front of
the lens could give spectra of bright fireballs, or not? Maybe we could
get a -12 spectra per month or quarter. I see this better than the 3
channel low-res spectroscopy of the colour cameras.
Paco
Chris Peterson escribió:
> Paco-
>
> Spectral analysis of meteor trails shows that emission lines dominate the
> light output. However, I think it is possible, or even probable, based on
> visual descriptions, that black body radiation dominates the output of
> bright fireballs (which haven't been studied spectroscopically). One way to
> study this question is by looking at the relative intensity at two or more
> wavelengths. While color cameras aren't ideal for this (I'm setting up a
> dual camera system with narrow band filters), it is still possible that
> useful information could be extracted from the individual color channels.
> The low sensitivity of color cameras makes them a poor choice for ordinary
> meteor monitoring, but that is no disadvantage at all if you are
> concentrating on fireballs.
>
> Chris
>
> *****************************************
> Chris L Peterson
> Cloudbait Observatory
> http://www.cloudbait.com
>
>
> ----- Original Message -----
> From: "Francisco Ocaña" <albireo3000 at yahoo.es>
> To: "Global Meteor Observing Forum" <meteorobs at meteorobs.org>
> Sent: Saturday, November 29, 2008 4:50 AM
> Subject: Re: (meteorobs) OT -Proceeding with IR block fireball detonation
> system.
>
>
> Interesting Chris! What would we expect from the 3 colour data?
>
> Thanks!
>
> Paco Ocaña
>
>
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