PoleMaster — electronic polar alignment

The problem with traditional polar alignment

The polar scope method works — but it has real limitations. It requires a view through the mount's polar scope, which can be obstructed by the telescope or camera. The illuminated reticle needs to be calibrated to the mount. And achieving precision better than a few arcminutes by eye is genuinely difficult.

Drift alignment gives better accuracy but takes considerably longer — rotating the mount, observing star drift, and iterating. For regular observers setting up at different locations, or for remote observatories where the initial alignment is done via a remotely-operated camera, this is impractical.

How PoleMaster works

PoleMaster uses a high-sensitivity CMOS camera with a wide field of view (approximately 11° × 8°). The camera mounts to the polar axis of the equatorial mount via a dedicated adapter. A dedicated software application on a connected PC guides the process:

1. The software identifies the pole area in the camera image and finds reference stars
2. You rotate the mount through a specified arc so the software can locate the true rotation axis
3. The software shows you exactly how to move the mount's altitude and azimuth adjustments to bring the pole to the correct position
4. The process iterates to refine the result, converging on sub-30 arcsecond alignment

Specifications

Mount compatibility

PoleMaster is compatible with all major equatorial mounts. Dedicated adapters are available for Sky-Watcher HEQ5 and EQ6, iOptron CEM25 and iEQ45, Losmandy G8 and G11, Vixen GP and SXP, Astro-Physics, and many others. The camera body is the same for all mounts — only the adapter ring differs.