A watan Yuni 1846, bayan ganin Le Verrier ta farko da aka buga kimantawa na duniya ta longitude da kuma kama da Adams ta kimanta, Airy shawo Challis nemi duniya. Challis vainly scoured sama a ko'ina cikin watan Agusta da Satumba. A halin yanzu, Le Verrier ta hanyar wasika bukaci Berlin Observatory astronomer Johann Gottfried Galle bincika tare da kallo ta refractor. Heinrich d'Arrest Adams, dalibi a kallo, shawara ga Galle cewa za su iya kwatanta kwanan nan zana taswirar na Verrier ta yankin da aka annabta halin yanzu wuri da neman sama na duniya a matsayin mai gyarawa star, kamar yadda aka annabta a watan Yuni 1846, Airy shawo Challis nemi duniya. A watan Agusta da Satumba, Le Verrier ta samu nasara a kan bincike na duniya ta hanyar takardun shaida da aka samu a watan Satumba na shekara ta 1966, inda ya nuna cewa akwai rashin amincewa da shi a matsayin mai bincike na duniya. "A ranar 12 ga watan Agusta, Le Verrier ya bayyana cewa babu wani abu da ya cancanci daukaka shi a matsayin mai bincike na duniya na duniya. "A cikin was
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