Polar Finder

What is Polar Finder

When astronomical observations or imaging is done using an equatorial telescope mount, the right-ascension (RA) axis should be parallel with the rotation axis of the Earth to avoid star-trails and errors in guiding. The method how we achieve it is called polar alignment and it starts with a rough alignment of the RA axis. The best aid for this is to use a polar finder scope with a reticle. On the reticle the Polar star (and the Octant for the Southern hemisphere) is engraved and should be positioned over the real Polaris by turning it. Because the Polaris is not exactly coincide with the Earth's rotation axis but rotates around it, one should know the exact hour angle of the Polaris to adjust (rotate) the finder.

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How to download and install?

• Open the Google Play Store
• Click on the search bar at the top of the screen
• Type 'Polar Finder' and select the first option
• Click the "Download" button and wait for the app to start installing on your mobile device. Depending on your download speed, this should only take a few minutes

How to remove Polar Finder from your phone?

• If you no longer need the functions or services of this application, you can uninstall it by opening the Application Manager on your device
• First, scroll down until you find the Polar Finder app
• Next, click on the app and tap 'Uninstall'
• The app will be successfully uninstalled from your mobile device and all of its data will also be removed