how to make a good alignement with an AVX.

I used to have an avx, but I had a polar scope on mine, without one you can use the polar alignment routine in the software I forget the name but there is one built in, and you can also use a drift alignment using phd2 guiding, I find that pretty accurate, but I usually use my polar scope to rough align and sharpcap polar alignment, or phd2 drift alignment.

thanks for your answer.
I’ll try next time what you say.

i heard that the counterweight need to be precise.
I’ll try to better balancing next time

Hi Darkytanus,

At least on my AZ-EQ6 you need to distinguish the GoTo alignment procedure  from polar alignment. I suspect it is the same on an AVX.

During GoTo aligment, when you point a few stars, the mount's computer measures the difference between their observed and theoretical positions and from that computes the angle between the mount's polar axis and the Earth polar axis. The mout can then accurately point at any target by compensating for that angle.

This is however true only for pointing. When tracking, the mount only rotates around the (potentially misaligned) polar axis. So you can indeed have a good GoTo but a bad tracking.

As Shawn said , without a polarscope, one way is drift alignment. That can be made with an autoguider of you have one, or the oldschool way, with a reticled eyepiece! It takes some time but you can do that during dawn.

I'd however recommend that you get a polarscope. It makes thing really easy if properly tuned. I routinely get drifts down to 0.5"/minute or less without having to do anything else.

CS

Frédéric