To prepare for the clear nights to come, I made use of a brief clearance between clouds to test the polar alignement. I connected the ASI174 to the Esprit f=840mm and let PHD2 guide for 4 minutes. The Polar Alignement stabilized on 4 arc minutes
Is that good enough?
And the result of the next night: the PHD2 Guidelog analysed with PECPREP
![](https://i0.wp.com/www.drogenberg.be/wp-content/uploads/2018/10/PHD2-Guidelog-View-7hrs.jpg?resize=525%2C295&ssl=1)
![](https://i0.wp.com/www.drogenberg.be/wp-content/uploads/2018/10/PHD2-Guidelog-4OKT2018-View-2-minutes.jpg?resize=525%2C298&ssl=1)
![](https://i0.wp.com/www.drogenberg.be/wp-content/uploads/2018/10/Calibration-result-4OKT2018.jpg?resize=525%2C350&ssl=1)