Passage: The avhareji arambe achirema Callisto, 1.83 g / cm3, kunoratidza munhu anoumba anenge akaenzana zvikamu matombo zvinhu uye mvura chando, pamwe mamwe volatile chando akadai ammonia. The vakawanda chikamu chando ndiko 49<unk>55%. The chaiyo anoumba Callisto kuti dombo chinoumba haizivikanwi, asi zvichida pedyo anoumba L / LL mhando chondrites zvavo, izvo unhu zvishoma zvachose simbi, zvishoma simbi simbi uye zvakawanda simbi oxide pane H chondrites. The uremu reshiyo simbi nesilicon iri 0.9<unk>1.3 muna Callisto, apo rezuva reshiyo iri kumativi 1:8. pamusoro Callisto ane albedo pamusoro 20%. anoumba Its inofungidzirwa kuti zvakafanana zvikuru kuti anoumba ayo yose. Near-infrared spectroscopy kwakaratidza kuti anoumba pamusoro pemvura heterogeneous chando panguva 1.0%.
3,0 micrometers