BBC Sky at Night Magazine

Setting up a star tracker

A quick step-by-step guide to getting your star tracker up and running

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STEP 1

Mount your tracker on a sturdy tripod that’s able to hold its weight without sagging, then level it and set it to your latitude. Make sure everything is tightened up with no slippage.

STEP 3

With your target selected and focused sharply, set your camera to take a sequence of images and begin the exposures using a cable release to reduce vibrations.

STEP 2

Using its finderscop­e or device, align the tracker on the Pole Star. You can use a phone app to help you polar align even more accurately, which will give sharper images.

STEP 4

Review your images – if any are trailed check your tracker is level and aligned properly. Keep checking your camera lens has not misted over in between exposures too.

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