Gordon's link and instructions are good for the older circle-on-a-circle style reticle. With the newer style reticle that shows a clock dial, the technique is different. Instead of rotating the
RA axis to a different position every night to accommodate the movement of Polaris, you always rotate it to the position that puts the clock dial vertical.
In the example above, Polaris was initially placed at the dead-centre of the dial. Then it was moved up or down (it doesn't matter which) onto the dial ring, and the
RA axis was rotated to make the 0 or 6 o'clock marking align with the star. That is the reticle orientation that you will always use.
Once you have the reticle oriented correctly, look up the current clock position for Polaris. Note that this is not the same as "hour angle". Your handset might tell you the current clock position, or there are polar alignment apps that will tell you. Using the dial like a clock dial (0 or 12 at the top, 3 at the right, 6 at the bottom, and 9 at the left), adjust the mount to place Polaris on the dial at the correct clock position.
Clock dial reticles allow for correction for the movement of Polaris due to precession. Which circle you use depends on the year, as shown in the inset. This level of precision is probably more than most people require.
