Re: Paramount ME vs. AP 1200GTO
Jeff Young <jey@...>
I have an AP1200GTO in a 10' TI dome. I used to spend hours drift
aligning my fork mounts, but I've never done anything more than a
quick and dirty alignment using the polar scope with the AP.
I tried shimming the tube for orthogonality, but a 0.005" piece of
brass shimstock was larger than the orthogonality error (this had to
be dumb luck -- there's no way my OTA and rings were fabricated with
that kind of precision).
My OTA is a big SCT, which has some mirror flop (probably on the
order of a couple of arc-minutes), and a horrendously long focal
length (about 4450mm with rotator and focuser on the back).
While I'm one of those people that nag Roland for a pointing model,
there's really no reason (other than that it would be cool). I've
never had a target placed outside a 26mm T5, even with all the above
Oh, and I also find that a GLP works well as a finder. I did have
to place a dew-heater strip under mine, as the output of mine falls
off dramatically around 2°C, but the heater has eliminated that
problem. But the biggest advantage of the GLP is that in Ireland I
often observe in partly-cloudy conditions, and when the veiw starts
to go fuzzy I can turn the GLP on for a second and quickly see
(without having to getting up from my seat) whether or not I'm
getting obscured by clouds.
--- In ap-gto@..., "sreilly" <sreilly@...> wrote:
the mount being center of the dome. Regardless, it's a ten footdome. If
perfect pointing in an issue and you don't want to use thecomputer with any
modeling, what Roland is suggesting is fast and simple. I'm notsure what Ed
may have shown you last week, but his Polar alignment was done byme using
PoleAlignMax , PEM was programmed by using the included PemProusing
multiple guider cycles. Earlier issues with pointing was correctedwhen I
had him check his location setup in his hand controller, TheSky,ACP and
other programs he was using and making then identical in allprograms. His
pointing is great now.Point
model active? After having just set up your Gemini G11, what isthe rush to
get another mount other than the obvious move up in mounts?Behalf Of
writes:theIf A-P had the product in stock and had the pointing model in
Ihand controller, it would make this a very easy decision for me.
You can setalready own/use TPoint from the computer, but having a pointingIn an observatory situation you may never need a pointing model.
the keypad. In my own observatory I have set up a 10" F14.6 Mak-Cass
permanently, and I never fail to place objects in the field of amedium
power eyepiece. Isomething
pretty high precision. When I go to any other area of the sky, Ifirst go to
athe object I
beamneck at odd
angles.set up each
for those using teeny tiny chips with loooong scopes like C14s).http://www.aol.com.