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== Effects of Polar Alignment == A bad polar alignment causes the stars to trail in your image. This will make or break your imaging session, if you can't polar align your mount you won't be able to get good images. An average unguided mount can accurately track for several minutes using a small telescope provided it has a good polar alignment. Even if you guide your mount a bad polar alignment will cause field rotation to occur since it will compensate for the R/A error with declination axis tracking. [http://i.imgur.com/ZgWR2na.jpg This image was taken with poor polar alignment] - The sub-exposures are only 30 seconds long and still show trailing. [http://i.imgur.com/pLoBSSy.jpg This image was taken with a better polar alignment] - The same mount was able to track accurately for 120 seconds without trailing.
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