Re: [APML] Machholz Mosaic

[John Laborde <jlaborde@ix.netcom.com>]

Hi Chris,

I haven't read this group in a few days so this is a little late.

Nice shot! The guiding on the comet really paid off in tail detail. Good 
work.

John Laborde

Chris Cook wrote:

>Hi everyone,
>
>Nights of good imaging have been few and far between since winter set in
>around here.  However, I did get two halfway decent nights around the first
>of the month.  I imaged Machholz with the FS102 and 400F.  I used the ST-4
>to guide on the nucleus but boy it was a real pain in the butt!  Probably
>the toughest comet I've ever had to guide on.  There was a faint star right
>next to the nuc which the ST-4 kept wanting to lock onto.  I ended up
>defocusing the guidescope slightly so the faint star would fade out yet the
>comet's nuc was still bright enough to guide on.  It seemed to work since
>the guiding definitely improved after that.
>
>So, here's a two frame mosaic showing the comet's position on the evening of
>the 5th and the next evening the 6th.  I had a tough time trying to get the
>two images to match since transparency was not as good on the 6th with some
>very thin haze around... also there was more moisture in the air.  Let me
>know what you think.  Also, note how the ion tail changed over a 24hr
>period.
>
>Mosaic:
>http://www.abmedia.com/astro/current/machholz-mosaic.html
>
>Here's a shot of just the comet on the 5th:
>http://www.abmedia.com/astro/current/machholz-020505.html
>
>Comments always welcome!  Enjoy the view.
>
>Chris
>
>-----------------------------
>Chris Cook Photography
>www.cookphoto.com
>
>
>
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>  
>


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