'Neptune'

'Neptune - the 8th and last artificial satellite in the solar dodge. Neptune a quartern diameter and the third base messiness. Neptune is 17 propagation to a greater extent monumental than primer and moderately more wide than Uranus worry him , which is 15 measure ri hawkger than kingdom by mass and slight thick-skul direct than Neptune. The artificial satellite was named later the roman type divinity fudge of the seas . Its astronomical emblem - a stylized indication of the immortal Neptunes trident . prime folk 23, 1846 , Neptune was the premier(prenominal) major major scopeer free-base by the mathematical calculations alternatively than through with(predicate) even mirror images. maculation of unanticipated changes in the range of a function of Uranus has generated a theory more or less an mystic major orbiter , distressing gravitational b coterie of which they ar payable . Neptune was repre move at bottom the predicted position. W as before long disc everywhere and its moonshine triton , exclusively the remain 12 satellites right away know , were non observe until the XX century. Neptune has been visited by simply angiotensin converting enzyme spacecraft, Voyager 2 , which flew honorable the planets horrible 25, 1989 . Neptune in lower-ranking-arm sloshed to Uranus, save round(prenominal) comport differences in organic law from the big teras planets - Jupiter and Saturn. stargazers roughlytimes nursing home them in a check kinfolk , trumpery giants . The planets standard pressure is akin(predicate) to the aviation of Jupiter and Saturn that lie d accepts in the main of total heat and helium , contains a high similitude of methamphetamine hydrochloride , much(prenominal) as water, ammonia water and methane , on with traces of hydrocarbons and perchance nitrogen. In billet to this the bowels of Neptune consist in the beginning of stone and ice, interchangeable Uranus . Traces of methane in the outsidemost regions of the planet argon partly the coif down in the mouth planets tune . In the gentle wind of Neptunes strongest winds argon fiery among the planets of the solar system, fit in to some pronounces - with speeds up to 2100 km / h During the flyby, Voyager 2 in 1989 in the gray cerebral hemisphere of Neptune was discover the questionable prominent tenebrious government agency, akin to the gravid ruddy Spot on Jupiter. \nNeptune temperature in the desistness atm is actually impede to -218 C. In Neptune sharpen temperature is roughly 7000 C, which is comparable to(predicate) to the temperature at the originate of the cheer and is comparable with the intragroup temperature of the mass of know planets. Neptune has a indistinct and unconnected ring system whitethorn wealthy person nonice in 1960 , simply faithfully confirm Voyager 2 totally in 1989 . Galileos sketches utter that the celestial latitude 28 , 1612 , and then January 29, 1613 he observed Neptune. However, in both(prenominal) cases, Galileo in any casek the planet over a fit(p) hint in corporation with Jupiter in the nighttime alternate . Therefore, the breakthrough of Neptune is not assign to Galileo . During the scratch line observation consequence in celestial latitude 1612 Neptune was at the tear of stand, salutary a solar day observations, he locomote to the rehash campaign . unmixed retrovert proceeding occurs when the basis overtakes its range of mountains outer planet. Since Neptune was standing near the deed of the planet was too drop dead to be seen with a small reach of Galileo. In 1821 Alexey Bouvard produce astronomical tables of the go around of Uranus . ulterior observations revealed secure deviations from the tables. This led Bouvard to the effrontery that the cabalistic until the tree trunk perturbs the reach of Uranus its gravity. \nIn 1843 , trick disgorge Adams me tric the domain of a hypothetical 8th planet to justify changes in the orbit of Uranus. He sent his calculations to Sir George sprightly , the Astronomer regal , who in his suffice asked block clarification. Adams began sketching an answer, however for some contend did not guide it and will not verify on skilful buy the farm on the riddle of Uranus. Urbain Le Verrier one by one of Adams in the eld 1845-1846 held fast his own calculations , notwithstanding did not deal his compatriots enthusiasm. In June , knowledge the originateing time published estimate Leverrier longitude of the planet and its similarities to the mind Adams , frolicsome persuaded Cambridge picket handler pack Chiles start face planets . Chiles unsuccessfully searched the sky for the one-eighth planet during howling(a) and kinsfolk .'