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Verbatim
2640 Hällström
Asteroid
Asteroid group
:
Asteroid belt
Spectral type
:
V-type asteroid
Discovered
:
March 18, 1941
Discoverer
:
Liisi Oterma
Discovery site
:
Iso-Heikkilä Observatory
Orbital period
:
1,356 days
Orbits
:
Sun