14 December
1546: On 14 December 1546, Tycho Brahe was born.Brahe was a Danish astronomer whose work in developing astronomical instruments and in measuring and fixing the positions of stars paved the ...
31 DIC. 2003
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1612: On 15 December 1612, Simon Marius became the first person to spot another galaxy (Andromeda) through a telescope.
Marius was a German astronomer who made observations of the stars and planets using a telescope and published yearly astronomical tables.
Throughout most of his life, Marius copied data from other scientists and although he named the four moons of Jupiter, their discovery is generally credited to Galileo.
He described his first observation of Andromeda in the preface to his publication Mundus Jovialis as "like the flame of a candle seen through horn."
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13 December
1805: On 13 December 1805, Johann von Lamont was born.Von Lamont was a Scottish-born German astronomer who is noted for discovering that the magnetic field of Earth fluctuates with a ...
12 December
1871: On 12 December 1871, French astronomer Jules Janssen made spectroscopic observations of an eclipse in India.The observation confirmed his own theory that the corona, normally only visible during a ...
11 December
1972: On 11 December 1972, Apollo 17 astronauts Gene Cernan and Harrison Schmitt landed on the Moon for a three-day exploration.This would be the final Apollo mission to the Moon.
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