comet and spectroscopic observations on 17 may

during this clear night i could observe some comets with the 0.4-m f/3.8 newton telescope: C/2017 T2, C/2019 N1, C/2020 H2. Also with the C11 and LHiResIII spectrograph i could obtaine some spectr of Be-stars: 53 Bootes, HD 206773, V380 Cep

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