Best star trackers for astrophotography

The greatest star trackers for astrophotography have modified the scene without end by counteracting the rotation of our planet. Until just a few years in the past a protracted publicity of over about 10 seconds triggered stars to blur. That made it very tough to extract a lot information from deep-sky objects reminiscent of nebulae, but in addition from the Milky Way. Cue the invention of the star-tracker, which is mainly a shrunken equatorial mount, however designed for cameras as an alternative of telescopes.

Like an equatorial mount, a star tracker must be aligned (typically with the assistance of a smartphone app) with the north celestial pole (the star Polaris) within the northern hemisphere or the south celestial pole within the southern hemisphere. It then retains your digital camera in sync with Earth’s rotation. That approach it counteracts the rotation of the Earth and retains the goal object nonetheless in a composition, thus permitting blur-free lengthy exposures.


The greatest star trackers for astrophotography 2022

(Image credit score: Benro)

Benro Polaris

Best star tracker general and comes with digital camera interface controller

Specifications

Weight: 3.3lbs / 1.5kg

Dimensions: 5.7 x 5.5 x 4.3-inch / 145 x 140 x 110mm

Max. payload: 15lbs / 7kg

Power: Built-in 2500 mAh battery

Tripod thread: 3/8-inch with 1/4-inch adapters

Alignment methodology: Benro Polaris app/celestial objects

Reasons to purchase

+

Easy alignment

+

Camera interface controller

+

Excellent construct high quality 

Reasons to keep away from

Very costly 

Overkill for most

Still requires some stargazing data

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