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The William Herschel Telescope
Patrick Moore visits the island of La Palma where the William Herschel Telescope is about to come into operation. It is not only the largest telescope in the world, but probably the most accurate.
Last on
Sat 18 Jul 1987
17:05
大象传媒 Two except East, South East & Yorkshire
Clips
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A very accurate mirror
Duration: 01:33
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Engineering the William Herschel Telescope
Duration: 03:06
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