Hi Charles;
Howard Lazarus here. On my keypad which I got back in Oct 1998 I maually

move the scope back to the selected star and then press goto to go back to
Polaris. Now unless I read you incorrectly you are pressing the recal

it goes to the original selected star by automatic slewing???. Under my

keypad I go back to the selected star manually.

1. When does it pay to send in the keypad for the most important updates.

2. Do you have any idea how long it would take to get the keypad back.

3.Do you have any info on the computer chip for the main computer

coming and what we can expect it's usage to us give us.

Lastly, you know that I have had many e mail contacts with you and I

your efforts as well as you willingness to aid us poor amateurs....but...I

no problems with the goto precision and then only with three at most

Simply by using a southern star and being a wise guy and having the scope

polar aligned PIER...the alignment process I have which is obviously the

newest works just fine and even better with your program.
Wishing much success
Howard

Charles Sinsofsky wrote:

Yes, I use the polar alignment with the lastest hand controller code,

must be at least 2.4 or later to use this method.

What you do is initally point the telescope roughly at the pole star.

choose a given star say 'deneb to start' and then manual move the scope

deneb. then once on deneb you use the telescope hand controller to

the star deneb in polar alignment mode and then auto slew it ot polaris
after you select the star deneb. the scope will slew to polaris, at this
time you let go of the hand controller and use the alt/az only to center
polaris as well as you can. then you ask for re-calibrate and you choose

star menu comes up, this time choose deneb again the scope will now auto
slew to deneb by itself, when you reach deneb, using the 'hand

key n,e,w,s buttons center deneb in a medium power eyepiece, then press
goto, the telescope will auto calibrate the new position of deneb and

autoslew back to polaris, then polaris will now be off center once again

use the alt az on your physical mount and then press re-calibrate and

ask for deneb again, I usually repeat the same star 5 times, then I

another star a great deal of distance away from deneb and go through

one 5 times and then I choose another star and do it 5 times and then I

back and do each star i used one time to ensure everything is pefect ie:

scope auto slews to each star and back to polaris always dead center and
then I exit the polar alignment routine.

with this method i can expose 30 minutes unguided with my camera, and i
have done several all night ling 10 mins exposures with the ccd camera,

to my web site www.digitalskyvoice.com and look at the gallery photos

unguided shots.

I hope this clears it up...the polar alignment routine and the mount

produce highly accurate polar alignment if you take the time to do the
procedure I outlined here.

- charles sinsofsky

----- Original Message -----
From: RCK <rkuberek@...>
To: <ap-gto@...>
Sent: Wednesday, July 28, 1999 10:02 PM
Subject: [ap-gto] Re: From where? Was: precision of ap900 gto

Charles Sinsofsky wrote:

I should point out that the setup would include a god polar

using

the hand controller and three or four stars from different points in

sky, a good deal of ra and dec values away from polaris.

Charles,

Do you repeat the N-Polar alignment procedure separately for different

stars?

Bob Kuberek

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