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Transcript of Neptune
Unexpected changes in the orbit of Uranus led Alexis Bouvard to deduce that its orbit was subject to gravitational perturbation by an unknown planet.
Neptune was subsequently observed on 23 September 1846 by Johann Galle within a degree of the position predicted by Urbain Le Verrier
and its largest moon, Triton, was discovered shortly after
None of the planet's remaining 12 moons were located telescopically until the 20th century.
Neptune has been visited by only one spacecraft, Voyager 2, which flew by the planet on 25 August 1989. TITAN SUN MARS VENUS EARTH MERCURY ASTEROID BELT JUPITER SATURN URANUS ...IS MADE OF... Hydrogen and helium like Jupiter and Saturn
traces of hydrocarbons and possibly nitrogen,
Contains a higher proportion of "ices" such as water, ammonia, and methane.
Astronomers sometimes categorise Uranus and Neptune as "ice giants" in order to emphasize these distinctions.
The inside of Neptune, like Uranus, is mainly made of ices and rock.
It is possible that the core has a solid surface, but the temperature would be thousands of degrees and the atmospheric pressure crushing.
Traces of methane in the outermost regions cause the planet's blue appearance Nereid Naiad Thalassa Despina Galatea Larissa Proteus Halimede Psamathe Sao Laomedeia Neso Neptune was named for the Roman god of the sea, its moons were named for various lesser sea gods and nymphs. WEATHER Neptune's atmosphere is notable for its active and visible weather patterns
Neptune's outer atmosphere is one of the coldest places in the Solar System, with temperatures at its coldest approaching −218 °C (55 K).
Temperatures at the planet's centre are approximately 5,400 K (5,000 °C). THERE ARE 8 PLANETS IN OUR SOLAR SYSTEM... .....AND i WILL BE DOING.... The Sun is the star at the center of our Solar System. Mars is the fourth planet from the Sun and the second smallest planet in the Solar System Mercury is the smallest and closest to the Sun of the eight planets in the Solar System, Venus is the second planet from the Sun, orbiting it every 224.7 Earth days Earth is the third planet from the Sun, and the densest and fifth-largest of the eight planets in the Solar System. Jupiter is the fifth planet from the Sun and the largest planet in the Solar System. Saturn is the sixth planet from the Sun and the second largest planet in the Solar System Uranus is the seventh planet from the Sun. Uranus is similar in composition to Neptune GLOSSARY Diameter: A straight line passing from side to side through the center of a body or figure
Trident: a three-pronged spear
Ammonia: colorless gas with a characteristic pungent smell. It dissolves in water to give a strong alkaline solution
Hydrogen: a colorless, odorless, highly flammable gas
Helium: lightest gas
Hydrocarbons: a compound a kind of hydrogen and carbon.
Nitrogen: a cold, colorless, odorless unreactive gas that forms about 78 percent of the earth's atmosphere.
Methane: a colorless, odorless flammable gas that is the main constituent of natural gas.
Empirical observation: source of knowledge acquired by means of observation or experiments
Alexis Bouvard: French astronomer: He is particularly noted for his careful observations of the irregularities in the motion of Uranus and his hypothesis of the existence of an eighth planet in the solar system. - Neptune.
Deduce: arrive at a fact or a conclusion by reasoning
Gravitational Perturbation: complex motion of a massive body subject to forces other than the gravitational attraction of a single other massive body due to gravity.
Johann Galle: German astronomer and alsowas the first person to view the planet Neptune and know what he was looking at. He used the calculations of Urbain Le Verrier to know where to look.
Urbain Le Verrier: French mathematician who specialized in celestial mechanics and is best known for his part in the discovery of Neptune.
Voyager 2: 722 kg (1,590 lb) space probe launched by NASA on August 20, 1977 to study the outer Solar System and eventually interstellar space.
K: Kelvin; the Kelvin is a unit of measurement for temperature; 1 Kelvin= 273.15°C
Methanobactiria: A bactiria that can survive in methane at the right temperature. In the class of the Euryarchaeota.
It is the fourth-largest planet by diameter and the third-largest by mass.
Among the gaseous planets in the solar system, Neptune is the densest.
Neptune is 17 times the mass of Earth and is slightly more massive than its near-twin Uranus, which is 15 times the mass of Earth but not as dense.
The surface gravity on Neptune is about 110% of the surface gravity on Earth, so if you weigh 100 pounds on Earth, you would weigh 110 pounds on Neptune. GRAVITY AND SIZE BIBLIOGRAPHYOF RESOURCES http://coolcosmos.ipac.caltech.edu WIKEPEDIA Ceres Dwarf planet in the asteroid belt THE END HELLO, MY NAME IS KREA. I AM AN KHRAIN ALIEN. I AM A GAS TYPE ALEIN, WHO CAN MATERIALIZE... STILL IN GAS FORM. I AM MADE OUT OF NITROGEN. I BREATHE IN HYDROGEN AND OUT HELUIM. THE HYDROGEN I BREATHE IN ALSO GETS ABSORBED AND IT HELPS FORM A RED EERIE GLOW THAT KEEPS ME WARM ON THE COLDEST OF NIGHTS. I ALSO HAVE 2 SETS OF EYELIDS. IF MY EYES GET COLD I CAN CLOSE THE INNER ONES, STAY WARM, AND STILL SEE. THEY WORK SIMILAR TO EYEBROWS. I FLOAT. IF I WAS TO WALKING I WOULD SINK RIGHT IN TO NEPTUNE. I EAT methanobacteria. TO GET IT I HAVE TO GO DEEPER INTO NEPTUNE BECAUSE THERE IS NO LIFE ON THE SURFACE EXCEPT FOR ME. Neptune's Hardships Alien overcommes it No air Breathes in Hydrogen −218 °C at coldest warm hydrogen light around outer made of gas; sink right in Alien made of gas no food found on surface go to the core unharmed where methanobacterium are 2 eyelids How Khrain Lives planets.sciencedaily.com ROTATION IT TAKES 164.79 Earth years FOR NEPTUNE TO REVOLVE AROUND THE SUN.
A DAY ON NEPTUNE IS ABOUT 16 HOURS
NEPTUNE'S TOTAL PATH IS 28,263,736,967 km GOING AT A SPEED OF 19,566 km/h. http://solarsystem.nasa.gov COOL FACTS In 2011 Neptune completed its first orbit since its discovery in 1846.
Neptune has 5 rings: Galle, Le verrier, Lassell, Arago, and Adams.
The astronomical symbol for neptune is a trident 110 100 NO KHRAIN ALIEN'S WERE HURT OR TORTURED FOR THE MAKING OF MY PRESITATION CONCLUSION THEREFORE THERE IS LIFE ON OTHER PLANETS, YOU JUST HAVE TO KNOW WHERE TO LOOK. ALIENS DONT LIKE TO BE DISCOVERED SO, THEY WILL MOST LIKELY BE HIDING.