Polar alignment Sounds great! 2 questions: 1. With my polar scope on my AP mounts, I can get to within 5-10 arcmin of the pole already. How much closer will PemPro get me? 2. My scopes are not

PEMPro Version 2.0 Beta is now available for download. New features include: - Polar Alignment Wizard - Backlash Adjustment Wizard - Native Webcam

Thanks Anthony, All 5 minute subs. I have to improve my polar alignment (about 5 arcmin off) and reprogram my Pempro before I try longer exposures with the 12". Ruben almost

Ruben, Beautiful result! What kind of subs did you use? Anthony.

Hello everyone, I wanted to let you know that we are aware of our email issue. We made a change to our service last night and it did not go as smoothly as one hoped. If you are getting a bounce

Very nice! I also appreciate the no-music option. Paul Gustafson

Beautiful shot Ruben! Great colour and detail! Stuart

Dear group, Last Friday night, both seeing and transparency co-operated for almost 6 hours. http://www.stardoctor.org/M106-hush without music http://www.stardoctor.org/M106 with music (may activate

Hello, I posted this question a while ago so you might want to check for those suggestions as well. I ended up getting the Parallax rings specifically for the TOA 150 and attaching them directly to

-Neils. I think the TOA150 is 179mm diamter, so 155 rings wont fit. Parallax makes rings for TOA150. You could use those with the terrific and well priced AP 15inch ribbed plate. I think

Niels, if you do have a plate made one of the most critical aspects you'll have to remember is the "exact" alignment of the holes for the attachment of both the mount and the OTA. You want to

AP makes several plates for the 900 with a variety of bolt patterns. See their website. The AP rings for my AP155 bolt directly to the plate. If you're lucky, the Tak rings might also. If they

I want to attach my Takahashi TOA-150 refractor to my 900GTO. I could purchase an appropriate dovetail and a Losmandy saddle. However, the quick release is not important as this will be a permanent

Hi Rick, I guess I'm spoiled in wanting to use the LED to see the alignment reticle a bit more easily. Besides, it is difficult to spot Polaris most times, and nearly impossible in late dusk,

Hi Dave, I'm glad you corrected my thinking. I had completely forgot the possibility of using it manually, without GOTO. In such case, definitely, a N-S switch would make good sense; it would

I personally would rather have a power switch. That aside, I believe that the AP mounts were designed with many target requirements, one of those being someone doing visual observing with or without

Hi Joe, It's best to have a slight imbalance so that any (small) gear backlash is always pushed out. I prefer the mount always to 'pull' a bit. Clear Skies, Gert

Hi Joe, Here is a point of reference. I use Pasill2,3,&4 models. I can easily line up the two stars from my home. I am right next to LAX airport and do the alignment looking right over LAX and

Thanks Jeff, I had forgotten about the large initial worm stress, with no OTA. I suppose if it can (and must) survive that, then the normal imbalance is no issue at all, in comparison. I had

We are mixing pointing at the pole and pointing at Polaris. If the mount is polar aligned and the telescope is orthogonal then you can do the following. When you point the telescope at the pole ie