![the neptunes the neptunes](http://larochelastroproject.weebly.com/uploads/4/5/0/1/45010865/6347737_orig.jpg)
Galle found the planet one degree away from the predicted point thus making Neptune the first planet to be discovered by mathematical calculations and predictions. They predicted where it should be, and astronomer Urbain Le Verrier asked the help of Johann Galle, an astronomer at the Berlin Observatory. The perturbed orbit of Uranus forced astronomers to conclude that another undiscovered planet must be at fault. The greatest factor of the discovery was the planet Uranus, whom astronomers were calculating its orbit and observed that Uranus wasn’t following their models. Neptune was observed in 1613 by Galileo Galilei however, he taught that it was just a star, and when he wanted to further research it, the motion of the planet began to be far too slight to be detected again. Due to its size it is even believed it is a captured dwarf planet. This means that it is a captured object by Neptune’s gravity.
![the neptunes the neptunes](https://usercontent2.hubstatic.com/14836721_f1024.jpg)
![the neptunes the neptunes](https://i.pinimg.com/736x/a9/f9/bb/a9f9bbd7b650d022553465c669db3f2b.jpg)
Currently it is 29.4 AU away from Earth with its light taking up to 4 hours to arrive to us. Neptune has an average distance of 2.8 billion miles/4.5 billion kilometers or 30 AU away from the Sun, being the furthest of the eight planets.Neptune’s color is believed to be influenced by the presence of methane in its atmosphere and also an unknown factor.Its satellites also received names of water deities. Neptune was given the name of the roman god of the sea due to its bluish-ocean like color.He predicted where it should be, and astronomer Johann Galle found it one degree away from the predicted point thus making Neptune the first planet to be discovered by mathematical calculations and predictions. The perturbed orbit of Uranus forced astronomer Urbain Le Verrier to conclude that another undiscovered planet must be at fault.The greatest factor of the discovery was the planet Uranus, whom astronomers were calculating its orbit and observed that Uranus wasn’t following their models.It is the only planet that is invisible to the unaided eye, thus it eluded ancient astronomers until it was officially discovered in 1846 by Le Verrier and Johann Galle.