By the end of September 1919 it was confirmed as being the same as Brorsen's comet.
Dodatna opazovanja so opravili še Edward Emerson Barnard (1857 – 1923) na Observatoriju Yerkes (Wisconsin, ZDA) 22. avgusta in Michel Giacobini (1873 – 1938) v Parizu ter Ostrovlev na Krimu in Selevanov v Sankt Peterburgu.