Re: [APML] Comet C/2002 C1 (Ikeya-Zhang)

[lkt <tan@cox.net>]

	Tony, Chris, thanks very much. I did not see the structure visually
even with an 11x70 oair of binoculors. Actually I was not even lookng
for such an event. The tail was quite faint. I only noticed it after
processing the negatives. I just took shot after shot to make sure that
I get at least one right one. The animation was done by cropping the
region of the tail event. I am actually quite surprised at the speed in
which the tail was moving and changing. The sequence of 3 frames only
took about 15 minutes or so of real time. It's quite volatile.

Loke



Chris Schur wrote:
> 
> Loke, thats cool. it amazing how fast the detail are changing.  How did you
> know to shoot the area?  were you able to see the structure visually?
> 
> Chris Schur
> 
> Astrophotography: http://www.psiaz.com/schur/astro/index.html
> 
> -----Original Message-----
> From: owner-astro-photo@seds.org [mailto:owner-astro-photo@seds.org]On
> Behalf Of lkt
> Sent: Wednesday, April 17, 2002 12:46 AM
> To: astro-photo@seds.org
> Subject: Re: [APML] Comet C/2002 C1 (Ikeya-Zhang)
> 
> Jim,
> 
>         Check out this 3 frame hypered TP animated GIF of the ion tail
> disconnection. I wish I had more darkness to shoot more frames. It
> appears that tail is moving with the comet and also changing in
> features. Each frame is a 4 min exposure taken between 4:45am - 5:00 am
> on the morning of April 14, 2002.
> 
> http://www.starryscapes.com/comets/ikeya-zhang_apr14_frame1-3.html
> 
> Loke
> 
> Jim Janusz wrote:
> >
> > I noticed that but if you look at the full res version it looks fine.  It
> > must be something about the trailed stars that causes the illusion.
> >
> > Jim
> 
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