The “Polar Finder” is a similar application available for Android smartphones and tablets of
different brands. The “Polar Finder” app is flexible and able to replicate a variety of the more
common reticles suitable for use in the Northern or Southern Hemisphere.
The following figures illustrate the Android “Polar Finder” app.
Polar Finder Preferences Classical Reticle Layout
The “Polar Finder” app also takes the observation site’s geographical coordinates from the
Android device’s internal GPS if available. If the device has no internal GPS the geographical
coordinates of the site must be manually entered.
5.3.4 More modern and precise approaches to Polar Alignment
In the last years a special CCD camera has been commercialised as, for example Polemaster
and iPolr, to perform a very precise polar alignment using an expressly developed software
(requiring therefore a Windows or Mac PC that, however should be available for the successive
astrophotography session).
That CCD must be firmly installed on the mount keeping a good parallelism with the polar axis
of the mount itself. Avalon Instrument has developed adapters for fixing the CCDs to the EVO-
zero body. This adapter is provided as an optional one among the several accessories for the
mount.
The Avalon Instruments has also developed a special software that, among several others
functions, has a tool to perform a precise polar alignment using the “plate solving”
algorithm which is shipped together with all other software for the StarGO included in
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Summary of Contents for EVO-ZERO
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