27 FEAB. 2004
Dáta foilsithe
1130
Amhairc
1859: On 29 January 1859, William Cranch Bond died.
Bond was an American astronomer who, with his son George Phillips Bond, discovered Hyperion, the eighth satellite of Saturn. Also they discovered an inner ring called Ring C, or the Crepe Ring.
In 1815 he had been sent by Harvard College to Europe to visit existing observatories and gather data preliminary to the building of an observatory at Harvard. In 1839 the observatory was founded. He supervised its construction, then became its first director.
Together with his son he developed the chronograph for automatically recording the position of stars. They also took some of the first recognizable photographs of celestial objects.
Modh meán
26 January
1978: On 26 January 1978, ESA launched IUE, the world's longest-lived and most productive satellite.
25 January
1736: On 25 January 1736, Joseph Louis Lagrange was born in Turin, Italy.
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