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Spectrophotometric characterization of interstellar comet 2I/Borisov before perihelion passage

Comets are primitive objects which formed in the outer parts of the proto-planetary disk, beyond the snow line. They can provide key information about the origins of our Solar System and its primordial nebula. The latest interstellar visitor [1], comet 2I/Borisov (initially designated C/2019 Q4), has given us the chance to have a probe from this environment of an unknown star