The seeing at the William Herschel Telescope |
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| Authors: | R W Wilson N O'Mahony C Packham M Azzaro |
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| Institution: | ATC, Astrophysics group, Cavendish Laboratory, Madingley Road, Cambridge CB3 0HE; Isaac Newton Group, Apartado 321, 38780 Santa Cruz de La Palma, Tenerife, Canary Islands, Spain |
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| Abstract: | We present results from a study of the seeing quality at the 4.2-m William Herschel telescope at La Palma. The median intrinsic seeing at the site is found to be excellent, and is comparable to that at the Paranal and Mauna Kea observatories. Contributions to the seeing from turbulence within the telescope dome are insignificant. Furthermore, the optical quality and tracking stability of the telescope are good, so that long-exposure image widths close to the limit imposed by the site seeing can be expected. |
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| Keywords: | atmospheric effects site testing telescopes |
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