Abstract
High-speed photometry, spectroscopy, and visual observations of TU Oph show it to be a Mira variable, not a dwarf nova as originally classified or a UV Cet star as tentatively classified.
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Warner, B., Fairall, A.P. & Overbeek, M.D. TU Ophiuchi: Mira variable — Not dwarf nova. Astrophys Space Sci 143, 211–213 (1988). https://doi.org/10.1007/BF00636770
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DOI: https://doi.org/10.1007/BF00636770