Swirling Stars at a Star Party


The stars of the northern sky swirl in circles around the North Star.

This is admittedly a fanciful effect but an attractive one. The above image records the rotating night sky as it spins around the north celestial pole near Polaris. I stacked 250 image to create this concentric star swirl.

To produce the image I used the excellent Advanced Stacker Actions from StarCircleAcademy, using the new version 14e actions. They include this novel “elastic” effect which produces trails with point-like stars at the beginning and end of the trails.

Table Mountain Star Party Star Trails #1

Another variation, the Short Comets effect, produced this image, with the stars turned into swirling comets.

I took the images for these composites at the Table Mountain Star Party near Oroville, Washington last week under superb skies. The same images that went into these still image stacks can be used to create time-lapse movies.

– Alan, July 29, 2014 / © 2014 Alan Dyer

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