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neptune's moons

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lakshpreet sumal

on 22 March 2017

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Transcript of neptune's moons

Neptune's moons
Hey, everyone today I will be talking about Neptune's moon, Triton and Nereid. I will be telling you all the facts about Neptune's moon .
First of all, I would like to give a brief description of Neptune. Neptune is the eighth and farthest known planet from the Sun in the Solar System. In the Solar System, it is the fourth-largest planet by diameter, the third-most-massive planet, and the densest giant planet
Triton is the largest natural satellite of Neptune.It was discovered on October 10, 1846, by English astronomer William Lassell. It is the only large moon in the Solar System with a retrograde orbit, an orbit in the opposite direction to its planet's rotation.The colour of triton is white, it size is 2,700 km {1,700 mi in dimater.Triton, Neptune's largest moon, was the last solid object visited by the Voyager 2 spacecraft on its epic 10-year tour of the outer solar system.The surface of Triton is very rugged, scarred by rising blobs of ice (diapirs), faults and volcanic pits and lava flows composed of water and other ices, it's temperature is mostly -235 C. It's 4.5 billion years old! It takes triton 5.877 days to orbit around Neptune, Triton orbit's in the oppsite direction to Neptune.
triton #2
Name: lakshpreet kaur Teacher : Mrs.Brar
Tecnolgy used to collect information the Voyager 2 spacecraft took this color photo of Neptune's moon Triton on Aug. 24 1989, at a range of 330,000 miles. The image was made from pictures taken through the green, violet and ultraviolet filters. In this technique, regions that are highly reflective in the ultraviolet appear blue in color. In reality, there is no part of Triton that would appear blue to the eye. The bright southern hemisphere of Triton, which fills most of this frame, is generally pink in tone, as is the even brighter equatorial band. The darker regions north of the equator also tend to be pink or reddish in color. When the Voyager mission flew by Triton, it took the spectra of the surface. The spectra matched that of ice and also several different kinds of snow (crushed ice).Triton's thin atmosphere is composed mainly of nitrogen with small amounts of methane. This atmosphere most likely originates from Triton's volcanic activity, which is driven by seasonal heating by the Sun. Triton, Io and Venus are the only bodies in the solar system besides Earth that are known to be volcanically active at the present time.
Nereid is the third-largest moon of Neptune. It has a highly eccentric orbit. It was the second moon of Neptune to be discovered, by Gerard Kuiper in 1949. Nereid's colour is white. Nereid is about 340 kilometers (210 miles) in diameter and is so far from Neptune that it requires 360 days to make one orbit. The temperature for Nereid is -135 °C. It's age is about 3.4 billon years old. Nereid was discovered on 1 May 1949 by Gerard P. Kuiper with a ground-based telescope. It was the last satellite of Neptune to be discovered before Voyager 2's discoveries four decades later.
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