TELESCOPES
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ASTRONOMICAL INSTITUTE |
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The observatory was initially located on the university building in the centre of Leiden before a new observatory building and dome were constructed in the university's botanical garden in 1860. It remained there until 1974 when the department moved to the science campus north-west of the city. Some notable astronomers have worked or directed the observatory including Willem de Sitter, Ejnar Hertzsprung, and Jan Oort. |
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SCIENTISTS OORT JAN HENDRIK |
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Oort made significant contributions to the understanding of the Milky Way. He was a pioneer in the field of radio astronomy. Oort determined that the Milky Way rotates and overturned the idea that the Sun was at its center.In 1932 he postulated the existence of the mysterious invisible dark matter, which now is believed to make up roughly 84.5% of the total matter in the Universe ulated the existence of the mysterious invisible dark matter, which now is believed to make up roughly 84.5% of the total matter in the Universe.
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