I jump right over trackers, and went to an Equatorial mount, GEM, or German Equatorial Mount.
I wanted something to take me to places I never knew.
Physically, any mount needs to be set up as carefully as you can. I use a
https://www.lowes.com/pd/M-D-GEN3-7-75-in-Digital-Line-Surface-Level/1000172537 digital level for mine, so I can get the tripod itself to 0.0 ° of level. On 3 or more plains.
My thinking is to try and reduce my human error as much as possible. I've had many an argument with others about it. But I come from an extensive background where accuracy is paramount to operation.
So I err toward the anal retentive side when setting up.
My polar alignment routine lends to the ridiculous.
But this leads to accurate alignments and tracking. So, a lot of practice will help with your results as the nights wear on.
Polar Aligning is a physical function to get the Alt and Az plains accurate to the location you are at. The amount of accuracy tells in the drift you get in your star field. The amount of drift ends up as trailing stars from exposure to exposure.
The longer the exposures, the more these irritations can be.
So to get sharp round stars, your tracking has to be spot on.
Your camera, regardless of type, is very unforgiving. It accurate records what it see's, especially with longer exposures. And that can be maddening as you progress. So more patience than you have ever known before, will yield better results to work with when processing.
The age old adage in computing comes to mind, "Garbage in = Garbage out".
And believe me, I have many gigabits of Pikturds, learning the above.
Many has been the night when I surrendered to frustration and simply packed it in to come back fresh the next day and try again. Usually with better results. Last night was one of those.
After a few checks and corrective measures, tonight was smooth as silk and I was imaging by 9:30 PM (21:30 Hrs)
I went a bit different direction from a tracker. I used a MOVO drive, a Geared Tripod head, and a stout surveyor's tripod. And a Intervalometer timer for shutter function. The conglomeration worked, but I found myself moving on because of my interest in nebula imaging.
If you might be interested, I can share some GPS coordinates for a great mountaintop up Bouquet Canyon that offers a nice flat FOV, some trees and brush for backdrop, and a huge amount of sky with less light pollution.
34.563032, -118.359297 (Removed due to UHH Policy change.) Martindale Ridge from Bouquet Junction ( Removed due to UHH Policy change. )
Google Map = Removed due to UHH Policy change.
The dark blue route is passable with a 2 wheel drive car or truck. But don't venture off on the other trails, they can turn into 4 wheel drive roads and could get dangerous. When in doubt, walk it out before you drive it.
I have a 2 wheel drive Chevy Avalanche I've been up there in. But it's been several years now. 5, almost 6.
I shot the Super Blood Moon up there.
https://youtu.be/A4ZMhxO3iSc