Thread: 400 years first sighting of Neptune
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Old 28-12-2012, 05:47 AM
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skysurfer
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400 years first sighting of Neptune
On 28 Dec 1612 Galileo saw Neptune close to Jupiter, he thought is was a star.
See a screenshot of Stellarium.

http://www.nature.com/nature/journal.../287311a0.html
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