Re: [APML] More Help

["Hap Griffin" <lgriffin@sc.rr.com>]

But when it all finally does come together...it's glorious!  To me there is
nothing (well, almost nothing) as satisfying as sitting in front of the
computer teasing the data from the noise and seeing something that you took
with your own wits, against all the odds you mentioned, which shows a
wonderous object that 99.999% of the worlds population have never glimpsed.
I don't know of many other hobbies that give such a gut rush back.  It makes
all the 15 degree nights and sleepless work days worth it.

Hap Griffin
www.machunter.org

----- Original Message ----- 
From: "Thom Iwancio" <tiwancio@sc.rr.com>
To: "'Discussion of Film Astrophotography'" <astro-photo@seds.org>
Sent: Saturday, January 03, 2004 9:39 PM
Subject: RE: [APML] More Help


> Thanks Stuart,
> I sure hope I am on the right track finally.  Getting everything
> aligned, focused, tracking, etc is a daunting task.  Just when you think
> it is all within you grasp, whamo, some new issue.  Never mind the
> weather, airplanes, the errant fellow observer or my own bungling of
> camera settings, film loading and such. You can't take anything for
> granted in astrophotography. Last summer I had a star trails shot
> (couldn't get easier right?) almost come to a sudden end because a
> fellow observer nearly ran over my tripod coming into the field after
> dark.  I was happy that he had his lights out, even happier that he
> stopped less than six inches from my rig!
>
> Then when you do finally strike pay dirt, you have to scan and process
> it.  Good grief, makes the Wright Bros pursuits seem trivial.  <VBG>
>
> Thom
>
>
> -----Original Message-----
> From: astro-photo-bounces@seds.org [mailto:astro-photo-bounces@seds.org]
> On Behalf Of Stuart Heggie
> Sent: Saturday, January 03, 2004 8:54 PM
> To: Discussion of Film Astrophotography
> Subject: Re: [APML] More Help
>
> Thom - at a quick guess I'd bet the autoguider rotating in the draw tube
> would cause that effect - kind of what you hinted at and I have had that
> problem with my guidescope and ST-7 because its weight is off-set from
> the
> center plus all the cables are sometimes pulling on it.
>
> Stuart
> ----- Original Message -----
> From: "Thom Iwancio" <tiwancio@sc.rr.com>
> To: "'Discussion of Film Astrophotography'" <astro-photo@seds.org>
> Sent: Saturday, January 03, 2004 6:23 PM
> Subject: RE: [APML] More Help
>
>
> > Jerry, I guess I should have listed some of the specifics huh. The
> shot
> > was taken through an 8"SCT on a GEM using a Lumicon OAG and it's built
> > in focal reducer in the f6 position so the guiding was done at f10,
> via
> > an ST-5c and CCDSoft, Provia 400F, Canon F1n, no notes on the exposure
> > time.
> >
> > If I follow what you are saying, the big bright stars are where the
> > tracking was good, the bridge is where the RA jumped and the smaller
> > connected star is really the bright one, offset due to the jump.
> > Elongated stars are a combined effect of the jump, and the nebula
> looks
> > pretty much ok because it takes so long to record it.  Sound about
> > right?
> >
> > This would make sense with some of what I have been seeing lately.
> > Having finally nailed my DEC drift (permanent mount) I have begun to
> get
> > suspicious of my guider extension tube and the forces induced by the
> > ST-5 cable during long exposures.  Everything else is aligned, tight
> and
> > tracking good, so I really think the guider is moving. Not enough to
> > lose the guide star altogether, but enough to force a big correction
> > before resuming good guiding.
> >
> > Man, this is a wicked hobby.
> >
> > Thanks,
> >
> > Thom
> >
>
>
>
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