Polar Clock

A small clock tool designed to help in the alignment of your telescope.

Polar Clock - Telescope Alignment Tool

"Polar Clock" is a lightweight Android app designed to assist with the polar alignment of equatorial mounts. It displays essential information such as Polaris' hour angle, local time, sidereal time, UTC time, and GPS coordinates. The app is particularly helpful for Orion and SkyWatcher mount users, offering a virtual polar scope for improved alignment accuracy. Easy to use, Polar Clock is the perfect companion for amateur astronomers looking to streamline their telescope setup process.

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App stats

By: Zsolt Nagy

Users: 46,785

159

Rating: 4.81

(364)

1 new ratings

Version: 1.10 (Last updated: 2024-05-11)

Creation date: 2019-12-11

Email: zs*****@gmail.com

URLs: Privacy policy

Permissions

Location: precise location (GPS and network-based)

Other: view network connections, full network access

Ranking

# 272,451 ▼ 20

Other platforms

Polar Clock (v0.1.9.1)

4.16

(32) 566

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App summary

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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.

User reviews

These summaries are automatically generated weekly using AI based on recent user reviews. Google Play Store does not verify user reviews, so some user reviews may be inaccurate, spammy, or outdated.

Pros

Free and ad-free app that is functional and uncluttered.
Accurate for polar alignment and easy to use.
Clean interface with straightforward guidance.
Ability to rotate the reticle for better alignment.
GPS and sidereal time are accurate.

Cons

Some users experienced issues with the app not working correctly or displaying errors.
The polar scope view's orientation can be problematic for some users depending on their equipment.
Minor display bugs reported, such as the app staying fullscreen intermittently.

Most mentioned

Accuracy of the polar alignment guidance.
Clean and simple design of the app.
Ability to rotate the crosshairs for alignment.
Issues with specific settings or placements of celestial bodies.

User reviews

Thanks for creating this very useful app which works exactly as expected and is provided ad free for free! For those who need a utility to quickly and accurately polar-align your portable tracking mount (e.g. iOptron Skyguider Pro), you need not look any further.

David Marshall, 2024-10-21

Does not work. Cross hair on scope does not move. Tried to set hemisphere manually, also used static position but still no response. I'm located in Southern hemisphere (Sydney).

Michael Howard, 2023-04-28

it positions the NCP opposite wrt other apps like SkyMap or Stellarium, because its flipped LR and UD . the constellations of Cassiopea and Big Dipper. are only for naked eye orientation, so ONLY the central part is flipped. Thank for the app !