Comet Wirtanen. (Photo Max-Planck-Institut f|r Aeronomie, courtesy T. Credner, J. Jockers, T.Bonev)
Home Comet Wirtanen. (Photo Max-Planck-Institut f|r Aeronomie, courtesy T. Credner, J. Jockers, T.Bonev) Comet Wirtanen. (Photo Max-Planck-Institut f|r Aeronomie, courtesy T. Credner, J. Jockers, T.Bonev)