Page 80 - Orange Butterfly Book 2

Date:
neptune
neptune is the eighth and last planet in the Solar System.
it is a gas giant, and the fourth largest planet in the Solar System. it is also the third heaviest (it is 17 times heavier than earth).
it has four hard-to-see rings.
it is named after the roman God of the Sea (known to the Greeks as Poseidon). it was named neptune because of its sea blue color, which is created because of the methane in its atmosphere.
it has the strongest winds of any planet in the Solar System, and they have been measured as high as 2,100 km/h.
It was first seen by Galileo, although he thought it was a star. The first person to see it and know what he was looking at was Johann Gottfried Galle, a German astronomer, on the September 23rd, 1846.
The Planets that Was
pluto
it is the second-largest dwarf planet in the Solar System.
in the early 21st century, eris, a dwarf planet was discovered. People started questioning why Pluto, being much smaller, should be considered a planet, but eris shouldn’t. on august 24th, 2006, the International Astronomical Union (the IAU) gave the first real definition the word “planet”. Because of this definition, Pluto was no longer considered a planet. It was named a dwarf planet, along with eris and Ceres (the smallest dwarf planet in the Solar System). Some scientists still believe Pluto should be classified as a planet.
in the 1930s, soon after its discovery, many people wanted to name it Zymal or Atlas. Venetia Burney, an 11-year-old schoolgirl in England who was interested in both mythology and astrology proposed the name Pluto. Pluto was the roman god of the underworld, and she thought it was a good name for such a dark and cold world. She suggested it to her grandfather, Falconer Madan, a former librarian in the University of Oxford’s Bodleian library. he then mentioned it to Professor herbert hall Turner, who in turn told the United States astronomers the proposed name. It was officially
unit
6
78