Re: [APML] Comet through murky skies

[Joe Mize <jmize@globe-net.net>]

Bert;

     Just returned form four days at Chiefland.  What a show Comet I-Z is
putting on, can't wait until the April mornings.  I might have something about
your "blue" quandary.  Everyone was commenting how blue the comet was
'visually'.  Only my 10 & 15min images on RG200S show a blue shell around the
the head, but in no way do my photos capture the blue throughout the comet as
seen visually.

     Unfortunately I was photographing while 10 acres away Tom Clark had his 36"
on Comet I-Z.  I was told there was an obvious Ion tail with a star between the
two tails Thursday night.  Must have been impressive.  BTW for all you AA
subscribers, Tom's 24' dome is complete lacking some final touches.  Now he has
to start working on the special mount for his 42".

Bert Katzung wrote:

> Hi Matt:
> I was surprised to get as much tail structure as I did, but yes, the blue is
> overwhelming! I don't know why it isn't suffused with red---shooting that
> low in the sky. I've already reduced the blue in the Color Balance tool but
> if I go much lower, it starts turning green. I'll have to study up on the
> "real unsharp mask" procedure again. Thanks for the comments...
> Bert
>
> Bert Katzung
> katzung1@attbi.com
> www.astronomy-images.com
>
> ----- Original Message -----
> From: "Matt BenDaniel" <matt@starmatt.com>
> To: <astro-photo@seds.org>
> Sent: Wednesday, March 13, 2002 8:30 PM
> Subject: Re: [APML] Comet through murky skies
>
> > At 08:05 PM 3/13/2002 -0800, Bert Katzung wrote:
> > >Hi Folks:
> > >I managed to get a hint of Ikeya-Zhang and its very long tail through
> some
> > >filthy post-sunset clouds last Friday. Konica Centuria 800 film. See:
> > >http://www.astronomy-images.com/images/comets/Ikeya-Zhang.htm
> > >Comments wecome....
> >
> > * nice tail structure
> > * image is too blue
> > * real unsharp mask shows interesting detail in head
> >
> > --
> > Matt BenDaniel
> > matt@starmatt.com
> > http://starmatt.com
> >
>
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--
       "May You Go Among The Imperishable Stars"

                              Joe Mize
                      http://sfo.sciastro.net
                  mailto:jmize@globe-net.net
                       Current Moon Phase
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