Marka la eego qiyaasta ay qaadatay Mariner 10, waxay ku saabsan tahay 1.1% xoogga magnetic-field ee dhulbaraha ee Mercury waa qiyaastii 300 nT. Sida dhulka, magnetic-field ee Mercury waa dipolar. Si ka duwan Earth ee, miridhada Mercury ayaa ku dhawaad la safan la dhidibka axis ee meeraha. cabbirada ka labada Mariner 10 iyo MESSENGER baadhitaanada bannaan ayaa tilmaamay in xoogga iyo qaabka magnetic field waa mid deggan. Waxaa macquul ah in magnetic field this waxaa soo saaray by saamayn dynamo, hab la mid ah sida magnetic field ee Earth. Tani waxay keeni kartaa in magnetic field ee ku wareegsan gudahood iftiinka birta- hodan ah si toos ah Earth ee.
Mariner 10 iyo