comet and spectroscopic observations on 13 sept.

During this clear night with very good transparancy and weather is observed several comets: 11P, 29P, 215P, 257P, C/2016 Q2, C/2017 B3, C/2017 K2, C/2017 Y2, C/2018 N2, C/2018 U1, C/2019 K7, C/2019 O3, C/2019 T3, A/2019 U5, C/2019 U6, C/2020 N1, C/2020 Q1, P/2020 P2. With the C11 and LHiResIII spectrograph i could take spectra: gam Cas for HeI detail @ 6678 Å, gam Cas for H-alpha detail, QR Vul, HD 206773.

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Vivaldi