Total elimination of light pollution technology improves astrophotography

Unistellar company assures that it has developed a new technology that can eliminate the obstacles of urban lighting during astrophotography or simple contemplation of the stars through telescopes. 

The Cigar galaxy, located at a distance of 11.4 million light-years from us, demonstrates the picturesque shape and details for which it got its name. Photo: Unistellar

The company says that more and more people are moving to live in cities, so the brightness of the city sky is growing by about 10% annually. The problem of light pollution does not seem to be solved by itself. With this purpose Unistellar has developed a system that will allow people living in densely populated cities, enjoy astrophotography and observe the starry sky without distortion.

NGC 1973 shows its bright blue, green and red shades. Photo: Unistellar

The technology, called Deep Dark Technology, automatically removes any visual interference caused by city lights. The company claims that it has its own set of algorithms, which are developed on the basis of numerous images of the sky taken by users of telescope cameras. Its set of proprietary algorithms is able to automatically distinguish the light signal coming from celestial bodies from noise and light pollution, which makes it possible to eliminate light distortion from each received image. Then these noises are filtered and deleted automatically, which allows the celestial object being watched to shine through them. Below is a graph provided by Unistellar that explains exactly how this technology works.

Infographics of Deep Dark Technology. Photo: Unistellar

“Even in very bright urban areas, the technology instantly transforms the image so that its black background is as intense as the depths of space, revealing celestial objects with impressive clarity,” Unistellar says.

Unistellar’s Deep Dark Technology is already available through the upgrade of any of the company’s telescopes, including eQuinox 2 and eVscope 2. 

Unistellar is one of the most well-known manufacturers of digital telescopes aimed at the amateur segment. Their optical products attracted the attention of the famous camera manufacturer Nikon, which entered into a partnership in the summer of 2021. And at the beginning of 2023, Nikon invested a financial stake in the company.

Earlier we talked about the TOP 4 telescopes that would be built before 2030.

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