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On this day in 1829 – January 27th – pioneering astrophotographer Isaac Roberts was born in Groes Bach, Henllan, Denbighshire, Wales, UK.

Roberts was an amateur astronomer and a fellow of the Royal Geological Society. He developed a photographic technique which made it possible to capture faint objects. Roberts's photograph of the Andromeda Nebula actually showed the spiral structure of M31.
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