Which planet has 5 rings that are named for the astronomers Johann Gottfried Galle, Urbain Le Verrier, William Lassell, François Arago and John Couch Adams?
Neptune Neptune also has a faint unnamed ring coincident with the orbit of its moon Galatea.
In 1846, using mathematical predictions by French mathematician Urbain Le Verrier, German astronomer Johann Gottfried Galle became the first person to observe which planet?
Which planet has a year of 687 days, a day of 24 hours 37 minutes, a diameter twice that of the moon and a mass one tenth of the earth?
