Double Periodic Variable

binary star

en-GB/ˈdʌbl ˌpɪəɹɪˈɒdɪk ˈvɛəɹɪəbl/
en-US/ˈdʌbəl ˌpiɹiˈɑdɪk ˈvɛɹiəbəl/

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binary star