| The Celestron CN16 GPS (Global Positioning System) module mounts on the tripod leg of a Celestron CGE Series go-to computerized German equatorial mount telescope using the supplied snap-on holder. A cable from the CN16 connects to the telescope. This converts the scope into a go-to system that uses GPS satellite transmissions for fully automatic stellar alignment, with no manual data input necessary on your part. Once the CN16 is mounted on the scope, the scope is taken outside and a rough polar alignment done. An optional polar alignment scope is available to make this procedure quick and relatively painless. A polar alignment subroutine in the computer hand control will aid in refining the alignment if extreme precision is needed for astrophotography purposes. The 16-channel GPS receiver of the CN16 then determines the scope’s latitude and longitude on earth from the GPS satellite signals with an accuracy measured in meters. It determines the time from the GPS satellite signals with an accuracy measured in fractions of a second. Once the scope’s computer is told by the CN-16 precisely where and when on Earth it is, the computer slews the telescope to the appropriate alignment guide stars for your confirmation – all in only a few short minutes, and with no work or data input necessary on your part. The CN16 GPS module makes aligning on the skies almost as simple as turning on the scope power. Whether you’re in your back yard, or if you travel frequently to different observing locations with your CGE Series scope, the CN16 will let you spend more time observing and less time getting ready to observe.
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