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    • Scientist using a photometer attached to a telescope.
    Rights: Denis Sullivan Published 1 April 2009 Size: 290 KB Referencing Hub media

    The photometer Denis Sullivan uses to study white dwarfs is portable. Here, it is attached to a 1.0m telescope at the University of Canterbury Observatory at Mt John.

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      The Sun and white dwarfs

      Professor Denis Sullivan studies white dwarfs – small and dense stars that are cooling down after being red giants. Our Sun, and most other stars, will eventually become a white dwarf. The life ...

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