Visitor mode observing

We got the opportunity to perform an OPTICON supported visitor mode observing run with the William Herschel Telescope on La Palma in 2015. We observed hot evolved stars on two nights with the Intermediate dispersion Spectrograph and Imaging System (ISIS).

The dome of the William Herschel Telescope. (Image source: ING; image credit: Nik Szymanek, July 2001.)

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