who was neptune discovered by?
John Couch Adams Dr Galle Urbain Le Verrier Heinrich Louis d'Arrest Johann Gottfried Galle
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 The discovery of Neptune in 1846 led to the discrediting of the Titius – Bode law in the eyes of scientists , because its orbit was nowhere near the predicted position . To date , there is no scientific explanation for the law , and astronomers ' consensus regards it as a coincidence . 

entailment
 Shortly after its discovery , Neptune was referred to simply as " the planet exterior to Uranus " or as " Le Verrier 's planet " . The first suggestion for a name came from Galle , who proposed the name Janus . In England , Challis put forward the name Oceanus . 

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 Neptune – god of the sea , accompanying the birth of Venus from the waves 

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 In 1909 , Thomas Jefferson Jackson See , an astronomer with a reputation as an egocentric contrarian , opined " that there is certainly one , most likely two and possibly three planets beyond Neptune " . Tentatively naming the first planet " Oceanus " , he placed their respective distances at 42 , 56 and 72 AU from the Sun . He gave no indication as to how he determined their existence , and no known searches were mounted to locate them . 

contradiction
 Even before Neptune 's discovery , some speculated that one planet alone was not enough to explain the discrepancy . On 17 November 1834 , the British amateur astronomer the Reverend Thomas John Hussey reported a conversation he had had with French astronomer Alexis Bouvard to George Biddell Airy , the British Astronomer Royal . Hussey reported that when he suggested to Bouvard that the unusual motion of Uranus might be due to the gravitational influence of an undiscovered planet , Bouvard replied that the idea had occurred to him , and that he had corresponded with Peter Andreas Hansen , director of the Seeberg Observatory in Gotha , about the subject . Hansen 's opinion was that a single body could not adequately explain the motion of Uranus , and postulated that two planets lay beyond Uranus . 
