during this clear night, i could observe a list of comets: 4P, 10P, 29P, 67P, 81P, 97P, 132P, 142P, C/2017 K2, C/2019 O3, C/2020 K1, C/2021 O3, C/2021 P4, P/2019 LD2. With the C11 and LHiReSS spectrograph, i could obtain several spectra in high resolution for H-alpha detail: 105 Tau, CT Cam, HD 21641, P¨Z Gem,