Gerald Rhemann is an accomplished astrophotographer who began his journey in 1987, inspired by Halley's Comet. Rhemann specializes in wide-field photography, particularly comet photography, and has developed sophisticated processing techniques to capture both comets and surrounding stars in focus.

He photographs under the clear skies of the Austrian Alps and the deserts of Namibia.

Over the years, Rhemann has become one of the best astrophotographers globally. His images are frequently published in books, magazines, and NASA websites. They have won also several awards. In 2022 he was the overall winner of the "Astronomy Photographer of the Year" organized by the Royal Greenwich Observatory.

It was a privilege that Steven Hawking personally decided to print one of his comet pictures in his book “George’s Secret Key to the Universe”.