Date   

Re: GOTO Mounts, Ease of use

MarkDambrosio@...
 

markdambrosi-@... wrote:
original article:http://www.egroups.com/group/ap-gto/?start=129

Hi Mark,

The 54" pier should be fine for most observing. Most of
the time you can be sitting and part of the time you may
want to stand or lean on a ladder.

At this time I have an older 56" pier and mount I use with my 180EDT.
It is just a little longer fl than your APOMAX.

If you want to be looking straight overhead most the time then you may
want a longer pier.

Rich


Hi Folks, Just curious, have those of you who have the AP GOTO
mounts,
i would like to ask how you found their ease of use when you first
got
them? (I'll probably be using mine with just the hand controller
at first, due to a lack of a laptop) I'm hoping that they are
not
too much of a head scratcher!, Also which Semi-pier (In height) would
you think to be suitable for the Apomax 5.2" F-12 refractor? (OTA
about
60" Long) Thanks, Mark
Hi Rich, I get the feeling the 54" pier may be too short, even with
the 1200 head upon it. Although with the HGM-200 w/60" legs, near
horizon viewing did require a short (24") stepladder, at the zenith, i
would be on my knees. Just about right for my tastes. (I like standing)
I'll have to hope that someone will have a 7.1" EDT at Astrofest this
year, so i can better judge this. I don't believe Tom Back will be
bringing his. Mark


Re: GOTO Mounts, Ease of use

Paul Gustafson <drgus@...>
 

Hi Folks, Just curious, have those of you who have the AP GOTO mounts,
i would like to ask how you found their ease of use when you first got
them? (I'll probably be using mine with just the hand controller
at first, due to a lack of a laptop) I'm hoping that they are not
too much of a head scratcher!
The polar alignment scope gets you nearly dead on, close enough for goto to
put the object in the fov, fine for casual/visual use. Better polar
alignment with the hand controller requires only minor tweaking, but makes
the goto much more accurate.

Also which Semi-pier (In height) would
you think to be suitable for the Apomax 5.2" F-12 refractor? (OTA about
60" Long) Thanks, Mark
I use the 54" with a 6" f/7 and I can do 80% of my observing seated with a
Starbound chair, and don't have to crawl on the ground to view at the
zenith. It does require standing to view near the horizon.

Paul Gustafson


GOTO Mounts, Ease of use

Derek Wong <dawong@...>
 

Just curious, have those of you who have the AP GOTO mounts,
i would like to ask how you found their ease of use when you first got
them? (I'll probably be using mine with just the hand controller
at first, due to a lack of a laptop)
Mark:

My mount was pretty easy to use right out of the box. However, the
alignment process can be a bit frustrating at first, especially if you
don't have an orthogonal setup (if you have a non-AP scope this may be
the case). I would strongly recommend getting the polar alignment
scope. You can get excellent alignment for visual work, and will only
need minor adjustments if you want very high precision pointing.

Derek Wong


Re: GOTO Mounts, Ease of use

Rich N. <rnapo@...>
 

Hi Mark,

The 54" pier should be fine for most observing. Most of
the time you can be sitting and part of the time you may
want to stand or lean on a ladder.

At this time I have an older 56" pier and mount I use with my 180EDT.
It is just a little longer fl than your APOMAX.

If you want to be looking straight overhead most the time then you may
want a longer pier.

Rich

Hi Folks, Just curious, have those of you who have the AP GOTO mounts,
i would like to ask how you found their ease of use when you first got
them? (I'll probably be using mine with just the hand controller
at first, due to a lack of a laptop) I'm hoping that they are not
too much of a head scratcher!, Also which Semi-pier (In height) would
you think to be suitable for the Apomax 5.2" F-12 refractor? (OTA about
60" Long) Thanks, Mark


GOTO Mounts, Ease of use

MarkDambrosio@...
 

Hi Folks, Just curious, have those of you who have the AP GOTO mounts,
i would like to ask how you found their ease of use when you first got
them? (I'll probably be using mine with just the hand controller
at first, due to a lack of a laptop) I'm hoping that they are not
too much of a head scratcher!, Also which Semi-pier (In height) would
you think to be suitable for the Apomax 5.2" F-12 refractor? (OTA about
60" Long) Thanks, Mark


Re: 1200 Production Run

Rich N. <rnapo@...>
 

I understand. The long lead times and the uncertainy of getting
on a production run are a real problem.

Rich

markdambrosi-@... wrote:
original article:http://www.egroups.com/group/ap-gto/?start=124
Hi Rich, Yes i have talked
with Christine numerous times, (And even Roland just recently), and it
is very hard to get this type of info from them. Not to be rude about
AP, as i do understand such matters.
Because there are only so many 1200's made in a production
run, i could be contacted in a few months, or it could be another 12.
It is a nail biting situation. Mark
Mark I think your best bet is to call or email
Christine at Astro-Physics.

Rich


Hi, Does anyone have a vague idea when production will start on
the
1200 mount? Mark
Also, Here's another very important question, Has anybody heard
if
there is going to be another price increase for the next production
run? After waiting 8-1/2 months on a waiting list, and selling a
$5,000 Losmandy HGM-200 mount in the meantime, a price increase will
possibly be the straw that broke the camel's back. Don't think i'll
be
able to afford more than the $6650.00 already asked for this mount.
Mark


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Re: 1200 Production Run

Bobby Middleton <bobm@...>
 

I've got the 1200 GTO after waiting right at a year.
Great mount!!! I haven't had a pic with
trailed images since I received it! I have now
put my name on the list for 155 EDF with the 4" focuser/field flattener.
Anybody have *any* idea about how long my wait will be?


Bobby Middleton

http://www.koyote.com/users/bobm/astro1.htm

-----Original Message-----
From: MarkDambrosio@... <MarkDambrosio@...>
To: ap-gto@... <ap-gto@...>
Date: Thursday, August 26, 1999 8:06 PM
Subject: [ap-gto] Re: 1200 Production Run


markdambrosi-@... wrote:
original article:http://www.egroups.com/group/ap-gto/?start=124
Hi Rich, Yes i have talked
with Christine numerous times, (And even Roland just recently), and it
is very hard to get this type of info from them. Not to be rude about
AP, as i do understand such matters.
Because there are only so many 1200's made in a production
run, i could be contacted in a few months, or it could be another 12.
It is a nail biting situation. Mark
Mark I think your best bet is to call or email
Christine at Astro-Physics.

Rich


Hi, Does anyone have a vague idea when production will start on
the
1200 mount? Mark
Also, Here's another very important question, Has anybody heard
if
there is going to be another price increase for the next production
run? After waiting 8-1/2 months on a waiting list, and selling a
$5,000 Losmandy HGM-200 mount in the meantime, a price increase will
possibly be the straw that broke the camel's back. Don't think i'll
be
able to afford more than the $6650.00 already asked for this mount.
Mark


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Re: 1200 Production Run

MarkDambrosio@...
 

markdambrosi-@... wrote:
original article:http://www.egroups.com/group/ap-gto/?start=124
Hi Rich, Yes i have talked
with Christine numerous times, (And even Roland just recently), and it
is very hard to get this type of info from them. Not to be rude about
AP, as i do understand such matters.
Because there are only so many 1200's made in a production
run, i could be contacted in a few months, or it could be another 12.
It is a nail biting situation. Mark
Mark I think your best bet is to call or email
Christine at Astro-Physics.

Rich


Hi, Does anyone have a vague idea when production will start on
the
1200 mount? Mark
Also, Here's another very important question, Has anybody heard
if
there is going to be another price increase for the next production
run? After waiting 8-1/2 months on a waiting list, and selling a
$5,000 Losmandy HGM-200 mount in the meantime, a price increase will
possibly be the straw that broke the camel's back. Don't think i'll
be
able to afford more than the $6650.00 already asked for this mount.
Mark


Re: 1200 Production Run

Rich N. <rnapo@...>
 

Mark I think your best bet is to call or email
Christine at Astro-Physics.

Rich

Hi, Does anyone have a vague idea when production will start on the
1200 mount? Mark
Also, Here's another very important question, Has anybody heard if
there is going to be another price increase for the next production
run? After waiting 8-1/2 months on a waiting list, and selling a
$5,000 Losmandy HGM-200 mount in the meantime, a price increase will
possibly be the straw that broke the camel's back. Don't think i'll be
able to afford more than the $6650.00 already asked for this mount.
Mark


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Re: 1200 Production Run

MarkDambrosio@...
 

markdambrosi-@... wrote:
original article:http://www.egroups.com/group/ap-gto/?start=121
Hi, Does anyone have a vague idea when production will start on the
1200 mount? Mark
Also, Here's another very important question, Has anybody heard if
there is going to be another price increase for the next production
run? After waiting 8-1/2 months on a waiting list, and selling a
$5,000 Losmandy HGM-200 mount in the meantime, a price increase will
possibly be the straw that broke the camel's back. Don't think i'll be
able to afford more than the $6650.00 already asked for this mount.
Mark


DigitalSky Voice Live in REAL-VIDEO

Charles Sinsofsky <strfire@...>
 

DigitalSky Voice to be SEEN LIVE in REAL-VIDEO on www.spacewatch.com

Author of DigitalSky Voice Charles Sinsofsky, will be interviewed LIVE from New York City on the Deep Sky channel at www.spacewatch.com
A complete product demonstration will also be presented, with a question and answer period following the demonstration.

Thursday August 26th, 1999, at 8:00pm EDT

See my web site for full details at www.digitalskyvoice.com

or at spacewatch.com  :  www.spacewatch.com

See you all there

- Charles Sinsofsky

   author: DigitalSky Voice

 


1200 Production Run

MarkDambrosio@...
 

Hi, Does anyone have a vague idea when production will start on the
1200 mount? Mark


Re: polar alignement,help

visonneau-vincent <visonneau-vin@...>
 

Hello again
It is just that the horizontally of tripods (or else) isn't important
when we use AP Polar Axis Finder Scope???
Bye
Vincent

----- Message d'origine -----
De : Charles Sinsofsky <strfire@...>
: <ap-gto@...>
Envoy : mardi 24 aot 1999 03:54
Objet : [ap-gto] Re: polar alignement,help


When you are at Deneb for the second time, are you waiting till the
scope
reaches deneb, you then use the N,S,W,E buttons, to move the star
into the
center of the eyepiece, and then press MENU not GOTO, press the MENU
button
to auto-slew back to polaris. I will check the code if you can press
goto
and see what happens, but press MENU this will re-calibrate the
position of
deneb and then auto slew back to polaris where you will use alt/az
to set
the position of polaris, and then either 'next' to exit or goto to
re-select
another star or the same star. I use this method all the time for my
mounts
and it works fine.

- charles sinsofsky
author: Astro-Physics DigitalSky Voice and the Hand-controller for
the
Goto mount. www.digitalskyvoice.com
aka: strfire@...

----- Original Message -----
From: visonneau-vincent <visonneau-vin@...>
To: <ap-gto@...>
Sent: Monday, August 23, 1999 9:21 PM
Subject: [ap-gto] polar alignement,help


Hello (excuse me formy english)
I want to know if it is important to make the tripod horizontally
if i
want to use the polar scope.I have some problem with it.
The precision of my ap 900 gto isn't very good and i dont know
why.I
used the next method :
"i choose a star (for exemple deneb) and then manual move the
scope to
deneb. then once on deneb i use the telescope hand controller to
select
the star deneb in polar alignment mode and then auto slew it ot
polaris
after i select the star deneb. the scope will slew to polaris, at
this
time i use the alt/az only to center polaris as well as you can
then i
ask for re-calibrate and i choose deneb again the scope will now
auto
slew to deneb by itself, when you reach deneb, then i use the
'hand
controller
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
then
autoslew back to polaris, I repeat the same star 4 or 5 times,
then I
choose
another star a great deal of distance away from deneb and go
through
that
one 5 times and then I choose another star and do it 5 times and
then
I go
back deneb and the precision ISN'T VERY GOOD and i dont understand
why?
What is the problem (celestron 8",horizontally,orthogonality(i
have
the system astrophysics made for the celestron 8))
.
If someone could help me.
Bye
Vincent
FRANCE


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Re: polar alignement,help

visonneau-vincent <visonneau-vin@...>
 

When you are at Deneb for the second time, are you waiting till the
scope
reaches deneb, you then use the N,S,W,E buttons, to move the star
into the
center of the eyepiece, and then press MENU not GOTO, press the MENU
button
to auto-slew back to polaris. I will check the code if you can press
goto
and see what happens, but press MENU this will re-calibrate the
position of

I press menu,i make a mistake in my last mail
Sorry
Vincent


Tracking!

RCK <rkuberek@...>
 

The news is good. I was able to train the PEC on my AP600 using the
autoguider on the ST7. The results are appended. The first column is
DEC and the second is RA. The scale is 1.7 arcsec. per pixel and the
total period covered is approx. 12 minutes. The object was NGC 6946.

For the training session I used a tracking image exposure of 2 sec. and
calibration times of 7 sec. and 7 sec. These results for unguided tracking
are far better than I have gotten without the PEC (see my earlier posts).

Bob Kuberek

ST-7 Track List
Version = 1
Snapshots = 16
Snapshot_time = 30.00
Temperature = -5.23
Height = 508
Width = 761
Offset = 0
0, 0
0, 1
1, 1
1, 0
1, 0
1, -1
2, -1
2, 0
2, 0
2, 0
2, 0
3, 0
3, 0
3, 1
3, 0
4, 0
End


Re: polar alignement,help

Charles Sinsofsky <strfire@...>
 

When you are at Deneb for the second time, are you waiting till the scope
reaches deneb, you then use the N,S,W,E buttons, to move the star into the
center of the eyepiece, and then press MENU not GOTO, press the MENU button
to auto-slew back to polaris. I will check the code if you can press goto
and see what happens, but press MENU this will re-calibrate the position of
deneb and then auto slew back to polaris where you will use alt/az to set
the position of polaris, and then either 'next' to exit or goto to re-select
another star or the same star. I use this method all the time for my mounts
and it works fine.

- charles sinsofsky
author: Astro-Physics DigitalSky Voice and the Hand-controller for the
Goto mount. www.digitalskyvoice.com
aka: strfire@...

----- Original Message -----
From: visonneau-vincent <visonneau-vin@...>
To: <ap-gto@...>
Sent: Monday, August 23, 1999 9:21 PM
Subject: [ap-gto] polar alignement,help


Hello (excuse me formy english)
I want to know if it is important to make the tripod horizontally if i
want to use the polar scope.I have some problem with it.
The precision of my ap 900 gto isn't very good and i dont know why.I
used the next method :
"i choose a star (for exemple deneb) and then manual move the scope to
deneb. then once on deneb i use the telescope hand controller to
select
the star deneb in polar alignment mode and then auto slew it ot
polaris
after i select the star deneb. the scope will slew to polaris, at this
time i use the alt/az only to center polaris as well as you can then i
ask for re-calibrate and i choose deneb again the scope will now auto
slew to deneb by itself, when you reach deneb, then i use the 'hand
controller
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
then
autoslew back to polaris, I repeat the same star 4 or 5 times, then I
choose
another star a great deal of distance away from deneb and go through
that
one 5 times and then I choose another star and do it 5 times and then
I go
back deneb and the precision ISN'T VERY GOOD and i dont understand
why?
What is the problem (celestron 8",horizontally,orthogonality(i have
the system astrophysics made for the celestron 8))
.
If someone could help me.
Bye
Vincent
FRANCE



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polar alignement,help

visonneau-vincent <visonneau-vin@...>
 

Hello (excuse me formy english)
I want to know if it is important to make the tripod horizontally if i
want to use the polar scope.I have some problem with it.
The precision of my ap 900 gto isn't very good and i dont know why.I
used the next method :
"i choose a star (for exemple deneb) and then manual move the scope to
deneb. then once on deneb i use the telescope hand controller to
select
the star deneb in polar alignment mode and then auto slew it ot
polaris
after i select the star deneb. the scope will slew to polaris, at this
time i use the alt/az only to center polaris as well as you can then i
ask for re-calibrate and i choose deneb again the scope will now auto
slew to deneb by itself, when you reach deneb, then i use the 'hand
controller
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
then
autoslew back to polaris, I repeat the same star 4 or 5 times, then I
choose
another star a great deal of distance away from deneb and go through
that
one 5 times and then I choose another star and do it 5 times and then
I go
back deneb and the precision ISN'T VERY GOOD and i dont understand
why?
What is the problem (celestron 8",horizontally,orthogonality(i have
the system astrophysics made for the celestron 8))
.
If someone could help me.
Bye
Vincent
FRANCE


Re: polar alignement,help (long response)

GrayFox65@...
 

Vincent,

Hello from Virginia. Trying to align the AP GTO mounts can be an intensely
frustrating experience until you get the hang of it. In answer to your first
question, no the mount does not have to be horizontal to successfully align
the mount. I made that mistake when I first got started, but "it just ain't
so!" I'm not sure why you aren't aligning successfully, I'll give some
thought to the steps you describe to see if I see anything wrong with them.
Meanwhile, I'm sure others in the group will do so as well.

One thought to keep in mind. Stars located on or very near the meridian (due
South) are very valuable for polar alignment. The reason is that when the
mount is pointed to the meridian, turning the mount's altitude (latitude)
adjuster translates into a purely vertical alignment star motion in the
eyepiece. As the mount is moved to the east or west, a horizontal component
is introduced into the movement of the alignment star when the altitude
adjuster is turned. By the time the mount is laid all the way over to the
east or west, turning the mount's altitude adjuster results in a nearly
horizontal movement of the alignment star in the eyepiece field. Since the
mount's azimuth adjuster always produces a horizontal movement no matter
where the mount is pointed, this can lead to confusion and a seeming
inability to bring the mount to proper alignment.

You may also be experiencing a problem with orthogonality due to the fact
that you are using an SCT on your mount. Others have suggested that it is
more difficult to maintain orthogonality with SCTs than with refractors. If
you use a star diagonal, lack of orthogonality there can be a contributor to
poor performance as well. The AP Maxbrite diagonal is machined to be very
close to true orthogonality.

Having said that, let me offer an alternate alignment method suggested by
Roland Christen, one that works superbly for me. Not only does it separate
altitude alignment and azimuth alignment into separate steps so you can more
easily see what is going on, but it also reveals any orthogonality errors
quite clearly. Furthermore, it doesn't require visibility of Polaris to
work, useful if your view to the North is blocked. I use this method all the
time now, and I can align my AP 155EDF and 600E GTO so well that objects fall
near the center of the field of view of a 3mm Radian, 10 arc minutes diameter
at 365X. Under those conditions, the GTO mount is truly a delight to use.

Here is Roland Christen's method. My amplifying comments are in [brackets].
Note that Roland says he can perform this method in 5 minutes. It take me
considerably longer, but the results are worth it.


GTO Mount Scope Alignment by Roland Christen

I use another method to achieve accurate results, a modification of
method 3 in the manual. [First, use either method 1 or method 2 to get close,
within one or two degrees.] I choose a star that is close to the meridian
overhead, and center the crosshairs on it. [Center the overhead star with the
N-S-E-W buttons and perform a Recal operation.] Then I change the clock time
by 1 hour and enter the same star on the hand control. The telescope now
slews to the other side of the mounting, and the star will be offset in
declination by some amount (the star can also be off the crosshair in R.A.
but this is not due to polar alignment, rather it is due to non-orthogonality
of the telescope vs. the mounting).

To polar align, the star is moved half way to the center of the crosshair
by turning only the altitude adjuster. The star is now brought the rest of
the way with the buttons, and a recal is done by pushing button #9. That in
effect sets the altitude of the mounting. If done properly, you don't need to
do it any more times, but you could do it again by resetting the clock time
to the original hour and slewing to the same star again on the other side of
the mounting. A final fine adjustment can be done the second time. [Ignore
any small displacement in R.A.] You can also adjust the orthogonality of
your mounting by shimming up one of the mounting rings until the star comes
in in R.A also.

The azimuth setting on the mount is done by picking a star in the north,
and then slewing to a star in the south at similar right ascensions. Bring
the star half way to the crosshair with the azimuth adjuster, and the rest of
the way with the buttons. [Ignore any small displacement in DEC] Then hit
#9 button to recal the position. This way, the two adjustment axes are done
totally independently. It is highly accurate and very fast. I can do it in
less than 5 minutes and be dead on all night long.

Sincerely
Roland Christen


Re: Win CE?

Charles Sinsofsky <strfire@...>
 

No, I have though not tried it, the Windows CE platform can not support the
use of the voice system. Though on the other hand, a version of DSV with out
voice might be able to be adapted to the Windosws CE platform. Perhaps I
will look into this after DSV 3.00 is released.

- Charles Sinsofsky
author: DigitalSky Voice
aka: strfire@...

----- Original Message -----
From: John Mensick <steadyeye@...>
To: <ap-gto@...>
Sent: Monday, August 16, 1999 9:52 PM
Subject: [ap-gto] Win CE?


Does anyone know if the AP Go-To software will run under the WinCE
operating system?

The reason this is important is tha it would allow much smaller computers
to be used - WinCE is the Windows version for small handheld PC's.

Thanks, John



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Win CE?

John Mensick <steadyeye@...>
 

Does anyone know if the AP Go-To software will run under the WinCE
operating system?

The reason this is important is tha it would allow much smaller computers
to be used - WinCE is the Windows version for small handheld PC's.

Thanks, John