Duba wurin da ke ƙasa sannan ka amsa tambayar daga baya a cikin harshe ɗaya kamar yadda wurin yake:  Passage: A cikin 1845<unk>46, Urbain Le Verrier, ba tare da Adams ba, ya haɓaka nasa ƙididdigar amma bai haifar da himma a cikin 'yan uwansa ba. A watan Yunin 1846, bayan ganin Le Verrier na farko da aka buga game da tsawon duniyar duniyar da kuma kamanninta da ƙididdigar Adams, Airy ya shawo kan Challis don neman duniyar. Challis ya yi amfani da sararin samaniya a cikin watan Agusta da Satumba. A halin yanzu, Le Verrier ta hanyar wasika ya bukaci masanin astronomer na Berlin Observatory Johann Gottfried Galle don bincika tare da mai lura da kallo. Heinrich d'Arrest, dalibi a gidan kallo, ya ba da shawara ga Galle cewa za su iya kwatanta taswirar kwanan nan da aka zana a sararin sama a yankin da Le Verrier ya yi hasashen wurin da sararin sama na yanzu don neman halayyar sauyawa na duniya, sabanin tauraron da aka kafa. A yammacin ranar 23 ga Satumba, 1846, ranar da Galle ya karɓi wasiƙar, ya gano Neptune a cikin 1 ° na inda Le Verrier ya annabta cewa zai kasance, kusan 12 ° daga hasashen Adams. Challis daga baya ya fahimci cewa ya lura da duniyar nan sau biyu, a ranar 4 da 12 ga Agusta, amma bai gane shi a matsayin duniyar ba saboda ba shi da taswirar tauraron zamani kuma ya shagala da aikinsa na lokaci-lokaci kan lura da tauraron dan adam.Bayan ganowar, akwai gasa mai yawa tsakanin Faransa da Ingila kan wanda ya cancanci yabo don ganowa. Daga baya, wata yarjejeniya ta kasa da kasa ta bayyana cewa duka Le Verrier da Adams sun cancanci yabo. Tun daga 1966, Dennis Rawlins ya yi tambaya game da amincin da'awar Adams don ganowa, kuma masana tarihi sun sake nazarin batun tare da dawowa a 1998 na "takardun Neptune" (takardun tarihi) zuwa Royal Observatory, Greenwich. Bayan nazarin takardun, sun nuna cewa "Adams ba ya cancanci daidai da Le Verrier don gano Neptune. Wannan yabo ya dangana ne ga mutumin da ya yi nasara wajen faɗin inda wannan duniyar take da kuma sa 'yan taurari su soma nemanta".  Tambaya: Mene ne sunan waɗannan takardun tarihi?
Takardun Neptune