[AZ-Observing] Re: Polar Alignment
- From: Steve D. <fester00@xxxxxxxxxxx>
- To: AZ Observing <az-observing@xxxxxxxxxxxxx>
- Date: Mon, 15 Mar 2010 11:58:29 -0700
Hi Stan,
Richard is correct, it takes some time to "tweek" the alignment, and it's
best done over several nights. I don't think it's anything physical-celestial,
I think it's more how the brain detects the small errors while performing the
alignment. Do an adjustment in both axes, sleep on it and go again later. I
did the same thing at my observatory over several nights, even weeks and now, I
can track an object all day or all night. I've done this with the Sun, so I
know.
Just stay with it for a few sessions and it'll be worth it.
Steve Dodder
Chairman, SAC Novice Group
Coordinator, Grand Canyon Star Party, North Rim
Director, Stone Haven Observatory
fester00@xxxxxxxxxxx
http://www.stargazing.net/Astroman
> Date: Mon, 15 Mar 2010 11:41:59 -0700
> From: stanlep@xxxxxxxxxxxxx
> To: az-observing@xxxxxxxxxxxxx
> Subject: [AZ-Observing] Re: Polar Alignment
>
> Thanks, Richard. It is interesting that it requires more than one night,
> in your case five. I wonder what the physical-celestial basis of this
> could be.
> Stan
>
> On 3/14/2010 10:15 PM, Richard Harshaw wrote:
> > I used the drift method to set the pier for my observatory, Stan, and used
> > an illuminated reticule to do it. I made tests over five different nights,
> > each one running about 30 minutes. After 4 nights, I was only getting about
> > 2 min of creep in 30 minutes, and by the end of the 5th night, the star
> > stayed centered all during the half hour run.
> >
> > IMHO, I think it is best to repeat the drift test 10 to 20 times before
> > saying you are even close to being polar aligned.
> >
> >
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