. On this day in 1829 – January 27th – pioneering astrophotographer Isaac Roberts was born.
Roberts was a Welsh 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.
. On this day in 1941 – January 27th – New Zealand astrophysicist Beatrice Hill Tinsley was born.
Beatrice Tinsley began her career late, and died in 1981, but in the intervening years she revolutionized our view of galactic evolution. Her pioneering work continues to be regularly cited by researchers.
. On this day in 1935 – January 29th – Czech astronomer Luboš Kohoutek was born.
Kohoutek has discovered over 70 minor planets, a number of planetary nebulae, a supernova and several comets. His name is probably best known internationally from the periodic comets that bear his name.
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