Hello, we are following with interest the evolution of the C/2019 Y4. I attach a spectrum (slit at PA 90°) that Paolo Ochner and I made on March 19 with the Galileo telescope (1.22m) at the Asiago Astrophysical Observatory (INAF-IAPD). The spectrum is fully calibrated. The identification of the lines follows: A High-Resolution Catalogue of Cometary Emission Lines (http://web.gps.caltech.edu/~mbrown/comet/echelle.html). Federico |
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