Due to the small scale of the chart, give Polaris 7-minutes from the estimated event time to cross the bar. At upper and lower culmination Polaris is directly above or below the celestial pole. Polaris is at true North, so this is a good time to check the azimuth alignment of your mount. Any large discrepancy indicates that the mount needs correction in azimuth. Polaris is at an altitude equal to your latitude.
Any large discrepancy indicates that the mount needs correction in altitude.
If you can determine this distance from the crosshair, you can use the event timings to achieve a quick polar alignment. With the telescope aligned as described above, move the mount in altitude and azimuth to place Polaris in the proper position for the event. One chart displays the position of Polaris in relation to the pole at any selected time. Another chart displays the time Polaris is at the four quad points and points in between. View the static demo that demonstrates this method.