Klas Bernhard Hasselberg
Klas Bernhard Hasselberg (3 September 1848 – 23 May 1922) is a Swedish astronomer. He was born in -. He died in Danderyd.
Klas Bernhard Hasselberg (3 September 1848 – 23 May 1922) is a Swedish astronomer. He was born in -. He died in Danderyd.