Ben Mayer

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Ben Mayer (? - 2000) was an amateur astronomer perhaps best known for the invention of the Projection Blink Comparator (PROBLICOM). This low-cost version of a tool used by professional astronomers allowed amateurs to contribute to some phases of serious research.

Mayer was the first ever to photograph a nova in its brightening phase. On the night of August 29, 1975, Mayer was using an automatic camera to photograph the sky hoping to track meteors large enough to survive entry into the Earth's atmosphere. After learning of the nova he realized it was in the part of the sky he was photographing. He retrieved his negatives from the trash (there were no meteors on the photographs) and found a series of images of Nova Cygni 1975 in several stages of brightening.

Mayer was a member of the American Association of Variable Star Observers and a frequent lecturer at the Riverside Telescope Makers Conference. In 1982 he won the Amateur Achievement Award of the Astronomical Society of the Pacific.