Polar Clock

Zsolt Nagy

About this app

Polar Clock is a lightweight, easy-to-use app, designed to help with the setup and polar alignment of an equatorial mount. It displays Polaris' hour angle, local, sidereal and UTC time and GPS coordinates. It provides additional help to Orion/SkyWatcher mount users by placing the Polaris in a virtual polar scope.

Ratings and reviews

As other users have commented, it's simple, no frills, does what you need with no problems. It offers a choice of two reticles for the position of Polaris, one for the Skywatcher Polar Scope, and a straightforward list of numerical data. Download and installation are quick. No ads, either.

No option for iOptron SkyGuider Pro. I appreciate it's other features, but a tad frustrating the clocks available aren't for SGP users. Update: I've determined after a few alignments, this is roughly good enough for Sky Guider Pro. The first few likely were user problems, and I will take responsibility for reviewing without more data. It still would be nice to have an option for SGP clocks, but if for a free app, I determined that I cannot complain.

Good but... Would be nice to be able to turn the polar scope around to get the numbers in any position as the polar scope on my tracker will move depending in my framing. It's a huge pain to re clutch the tracker, align it, clutch again, rinse and repeate every time it's getting slightly missaligned or changing a lens.

What’s new

Minor update for Android 13.