9 February

02 ΦΕΒ. 2005 1153

1811: On 9 February 1811, Nevil Maskelyne died.

Maskelyne was a British astronomer noted for his contribution to the science of navigation. In 1761 the Royal Society sent Maskelyne to the island of St Helena to make accurate measurements of a transit of Venus. This in turn gave the distance from Earth to the Sun, and the scale of the Solar System.

During the voyage he also experimented with the lunar position method of determining longitude. In 1764 he went on a voyage to Barbados to carry out trials of Harrison's timepiece, followed by appointment as Astronomer Royal in 1765.

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8 February

1677: On 8 February 1677, Jacques Cassini was born.

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7 February

1824: On 7 February 1824, Sir William Huggins was born.

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6 February

1973: On 6 February 1973, Ira Sprague Bowen died.

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5 February

2004: On 5 February 2004, ESA announced that the Rosetta mission's lander would be named “Philae”.

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