Version 5.1 of Polar Scope Align Pro came out recently with a new feature designed for manual mounts (mainly with Dobsonians in mind, but also for manual alt/az or EQ): Attach your phone parallel to your mount, select a target and Polar Scope Align Pro will help you push your manual mount towards the target. Because phone compasses are very sensitive to local magnetic fields (like those produced by metal mounts, telescope tubes), the app offers a “Hop To” function, where you first find a ...
