[Author Prev][Author Next][Thread Prev][Thread Next][Author Index][Thread Index]

Re: [APML] Comet Ikeya-Zhang Now



----- Original Message -----
From: "John C. Mirtle" <jmirtle@shaw.ca>

> The comet has an almost stellar
> nucleus, I'm surprised your ST4 couldn't latch on to it. You can always
> guide by hand........ :-)

I can only see haze through my 9mm reticle eyepiece with no bright nucleus.
I better recheck focus.
I don't mind some manual guiding, heck I've done lots of 60 min, some 90,
and even one or 2 two hour manual guides. I can make do guiding on a star
with my Pentax 165mm lens shots, but I am trying some 1200mm FL shots that
will need guiding on the comet.
Bobby

>
> John Mirtle
> Calgary, Ab. Canada
>
> ----- Original Message -----
> From: "Bobby Middleton" <bobm@koyote.com>
> To: <astro-photo@seds.org>
> Sent: Friday, April 12, 2002 6:17 AM
> Subject: Re: [APML] Comet Ikeya-Zhang Now
>
>
> > That's a good one John. The Schmidt cameras are made for these comets.
> Glad
> > to see you got rid of those circumpolar clouds <g>
> > How did you guide John?
> > Bobby Middleton
> >
> > ----- Original Message -----
> > From: "John C. Mirtle" <jmirtle@shaw.ca>
> > To: <astro-photo@seds.org>
> > Sent: Friday, April 12, 2002 1:57 AM
> > Subject: Re: [APML] Comet Ikeya-Zhang Now
> >
> >
> > > Kent;
> > >     For some of us it's up all night! It finally cleared off last
night,
> > and
> > > I got my first look at the comet. Easy naked eye, hanging off of
> > Cassiopeia.
> > > Mild aurora fired up and prevented me from taking a deep shot, but I
got
> a
> > > chunk of it with my Schmidt. (4x6 degree Celestron holder, 1 minute
tech
> > pan
> > > shot) It's putting on a nice show, and is still worth getting up for
at
> 4
> > in
> > > the morning. :-)
> > > http://members.shaw.ca/john.mirtle/i-zhang.htm (260Kb) If I got this
in
> 1
> > > minute, your 5 minute shots must be awesome Kent!
> > >
> > > John Mirtle
> > > Calgary, Ab. Canada (114W +51N)
> > >
> > > ----- Original Message -----
> > > From: <KGKIRKLEY@aol.com>
> > > To: <astro-photo@seds.org>
> > > Sent: Thursday, April 11, 2002 11:55 PM
> > > Subject: [APML] Comet Ikeya-Zhang Now
> > >
> > >
> > > > APML'ers:
> > > > Now is the time to photograph Comet Ikeya-Zhang!
> > > > For all practical purposes it is now a morning object.
> > > > At about 4:45 am CDT it is high enough to image easily.
> > > > You have until about 6 am CDT before twilight becomes a problem.
> > > > I photographed it 4-10-2002, Wednesday morning with my 8 inch f1.5
> > Schmidt
> > > > camera using the medium format, 10 degree Vehrenberg holder, using
> > hypered
> > > > Tech Pan unfiltered, with exposures of from 3 to 5 minutes,
processed
> in
> > > D-19
> > > > for 5 minutes.
> > > > I was surprised to find the tail is traceable for 7 degrees.
> > > > As I don't have a website, I'm unable to post them for you.
> > > > Kent Kirkley
> > > >
> > > > --  APML Archives at <http://astro.umsystem.edu/apml/>  ---
> > > >              Unsubscribe at <majordomo@seds.org>
> > >
> > >
> > > --  APML Archives at <http://astro.umsystem.edu/apml/>  ---
> > >              Unsubscribe at <majordomo@seds.org>
> >
> >
> > --  APML Archives at <http://astro.umsystem.edu/apml/>  ---
> >              Unsubscribe at <majordomo@seds.org>
>
>
> --  APML Archives at <http://astro.umsystem.edu/apml/>  ---
>              Unsubscribe at <majordomo@seds.org>


--  APML Archives at <http://astro.umsystem.edu/apml/>  ---
             Unsubscribe at <majordomo@seds.org>